Knowledge (XXG)

Hermann–Mauguin notation

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2905:
addition to rotations axes and mirror planes, space group may contain more complex symmetry elements – screw axes (combination of rotation and translation) and glide planes (combination of mirror reflection and translation). As a result, many different space groups can correspond to the same point group. For example, choosing different lattice types and glide planes one can generate 28 different space groups from point group mmm, e.g. Pmmm, Pnnn, Pccm, Pban, Cmcm, Ibam, Fmmm, Fddd, and so on. In some cases, a space group is generated when translations are simply added to a point group. In other cases there is no point around which the point group applies. The notation is somewhat ambiguous, without a table giving more information. For example, space groups I23 and I2
4279: 2994: 2987: 2980: 1979: 31: 3001: 1986: 4672: 2191:, which means that the group consists of 3-fold axis, three perpendicular 2-fold axes, and 3 vertical diagonal planes passing between these 2-fold axes, so it seems that the group can be denoted as 32m or 3m2. However, one should remember that, unlike Schoenflies notation, the direction of a plane in a Hermann–Mauguin symbol is defined as the direction perpendicular to the plane, and in the 2973: 4684: 2904:
with symbols specifying the symmetry elements. The symmetry elements are ordered the same way as in the symbol of corresponding point group (the group that is obtained if one removes all translational components from the space group). The symbols for symmetry elements are more diverse, because in
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tertiary directions. For example, in the picture of a regular hexagon one can distinguish two sets of mirror planes – three planes go through two opposite vertexes, and three other planes go through the centers of opposite sides. In this case any of two sets can be chosen as
2106:
m2, ... . For symbols of point groups this order usually doesn't matter; however, it will be important for Hermann–Mauguin symbols of corresponding space groups, where secondary directions are directions of symmetry elements along unit cell translations
226:
If two or more axes have the same direction, the axis with higher symmetry is shown. Higher symmetry means that the axis generates a pattern with more points. For example, rotation axes 3, 4, 5, 6, 7, 8 generate 3-, 4-, 5-, 6-, 7-, 8-point patterns, respectively.
2785:). The Hermann–Mauguin symbols were not designed for non-crystallographic groups, so their symbols are rather nominal and based on similarity to symbols of the crystallographic groups of a cubic crystal system. Group 4549: 4544: 194:
Hermann–Mauguin symbols show non-equivalent axes and planes in a symmetrical fashion. The direction of a symmetry element corresponds to its position in the Hermann–Mauguin symbol. If a rotation axis
255:
generate 6-, 4-, 10-, 6-, 14-, 8-point patterns, respectively. If a rotation and a rotoinversion axis generate the same number of points, the rotation axis should be chosen. For example, the
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3 (nos. 197 and 199) both contain two-fold rotational axes as well as two-fold screw axes. In the first, the two-fold axes intersect the three-fold axes, whereas in the second they do not.
4600: 830:). Analogously, symbols of non-crystallographic groups (with axes of order 5, 7, 8, 9, ...) can be constructed. These groups can be arranged in the following table 3082:. The degree of translation is then added as a subscript showing how far along the axis the translation is, as a portion of the parallel lattice vector. For example, 2 399:, and 6 all generate 6-point patterns, as we can see on the figure in the right, but the latter should be used because it is a rotation axis – the symbol will be  2441:
positions. This can be done if the rotation axis can be unambiguously obtained from the combination of symmetry elements presented in the symbol. For example, the
187:
is equivalent to a mirror plane and usually notated as m. The direction of the mirror plane is defined as the direction perpendicular to it (the direction of the
4418: 4605: 4330: 2321:. All of them contain four diagonal 3-fold axes. These axes are arranged as 3-fold axes in a cube, directed along its four space diagonals (the cube has 3674:
Vainshtein, Boris K., Modern Crystallography 1: Fundamentals of Crystals. Symmetry, and Methods of Structural Crystallography, Springer. 1994, page 93.
4496: 3788: 2006:
directions, perpendicular to higher-order axis, are symmetrically equivalent. For example, in the picture of a triangle all three mirror planes (
4595: 4587: 4648: 4626: 4641: 4491: 4157: 4022: 3871: 4631: 4529: 4225: 3878: 4653: 4511: 4481: 4410: 3724: 3661: 3580: 4363: 3683: 3760: 4636: 4559: 4433: 4032: 4393: 4715: 4471: 4486: 4476: 3781: 3622: 2749: 141:
notations, that shows rotation-reflection axes. The rotoinversion axes are represented by the corresponding number with a
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is given by the position of the symbol in the Hermann–Mauguin designation, just as with mirror planes. They are noted by
4610: 3883: 3861: 433: 138: 4288: 4162: 3916: 3811: 511: 34:
Three point groups with their respective Hermann–Mauguin notation, stereographic projections, and symmetry elements.
4278: 4688: 4519: 3816: 2993: 2986: 2979: 4534: 4463: 3921: 3911: 3216: 2027:) are equivalent – all of them pass through one vertex and the center of the opposite side. For even-order axes 751: 461: 4047: 4710: 4676: 4400: 4296: 4169: 4132: 3926: 3906: 3774: 3711: 3226: 827: 441: 4084: 2597:
m. In groups containing one higher-order axis, this higher-order axis cannot be omitted. For example, symbols
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2m denote two different space groups. This also applies to symbols of space groups with odd-order axes 3 and
4524: 4368: 4313: 4062: 4027: 3696: 3221: 3170: 2201:
group all mirror planes are perpendicular to 2-fold axes, so they should be written in the same position as
675: 4220: 2155:
or between them. Space groups P321 and P312 are examples of the former and the latter cases, respectively.
4037: 90: 67: 4142: 4577: 4373: 4335: 4094: 3828: 2866:. The next number is the rotational symmetry, as given above. The presence of mirror planes are denoted 3000: 432:
These groups may contain only two-fold axes, mirror planes, and/or an inversion center. These are the
4301: 4174: 4010: 3901: 3231: 2891: 2782: 2767: 2257: 2178: 836: 134: 82: 4318: 4306: 4181: 4147: 4127: 421: 2233:
complexes generate an inversion center, which combining with the 3-fold rotation axis generates a
4567: 4378: 4323: 3866: 142: 3545:
two glides with the same glide plane and translation along two (different) half-lattice vectors.
3572: 1978: 4501: 4340: 4268: 4248: 3968: 3838: 3720: 3576: 228: 130: 4539: 4345: 4263: 4253: 4052: 3985: 3956: 3949: 3564: 2972: 2871: 2851: 47: 2119:, while the tertiary directions correspond to the direction between unit cell translations 560:
is mmm.) If the symbol contains three positions, then they denote symmetry elements in the
4428: 4423: 4388: 4208: 4107: 4042: 4005: 4000: 3851: 3797: 2918: 2901: 86: 30: 3653: 3480:
glide, which is along a quarter of either a face or space diagonal of the unit cell. The
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glide planes with translation along a quarter of a face diagonal or of a space diagonal.
4238: 4203: 4191: 4186: 4152: 4122: 4112: 4071: 4015: 3939: 3893: 3211: 2854:
can be depicted using the Hermann–Mauguin system. The first letter is either lowercase
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Besides five cubic groups, there are two more non-crystallographic icosahedral groups (
4704: 4383: 4196: 3995: 3630: 3565: 2748:
m. The full and short symbols for all 32 crystallographic point groups are given in
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is used. (In these cases, centering entails that both glides occur.) To summarize:
3205:). This enantiomorphism results in 11 pairs of enantiomorphic space groups, namely 1985: 63: 2383:
Third position – diagonal directions between any two of the three coordinate axes
198:
and a mirror plane m have the same direction, then they are denoted as a fraction
3744: 3740: 4572: 4243: 4117: 3944: 3457: 2897: 2245: 59: 55: 51: 321:
already contains the mirror plane m). Analogously, in the case when both 3 and
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Notation to represent symmetry in point groups, plane groups and space groups
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First position – symmetrically equivalent directions of the coordinate axes
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depending on which axis (direction) the glide is along. There is also the
2143:. The perpendicular symmetry elements can go along unit cell translations 17: 4443: 4213: 3961: 39: 3476:
glide, which is a glide along the half of a diagonal of a face, and the
4453: 3485: 3597: 3598:"Chapter 10.1. Crystallographic and noncrystallographic point groups" 3484:
glide is often called the diamond glide plane as it features in the
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can be denoted as 235, 25, 532, 53. The possible short symbols for
4448: 3766: 2373:. They are equivalent due to the presence of diagonal 3-fold axes. 1984: 1977: 29: 3763:– An introduction into the Hermann-Maguin notation for beginners. 93:
elements, and it specifies the directions of the symmetry axes.
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Finally, the Hermann–Mauguin symbol depends on the type of the
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Groups without higher-order axes (axes of order three or more)
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glide translation along half the lattice vector of this face.
70:(who modified it in 1931). This notation is sometimes called 3488:
structure. In cases where there are two possibilities among
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is a 120° (threefold) rotation followed by a translation of
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is defined by combining the uppercase letter describing the
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symmetry). These symbols are constructed the following way:
2002:
the third position in symbol is always absent, because all
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is a 180° (twofold) rotation followed by a translation of
133:, Hermann–Mauguin symbols show rotoinversion axes, unlike 4550:
Zeitschrift für Kristallographie – New Crystal Structures
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Sands, Donald E. (1993). "Crystal Systems and Geometry".
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Zeitschrift für Kristallographie – Crystalline Materials
66:(who introduced it in 1928) and the French mineralogist 2415:
All Hermann–Mauguin symbols presented above are called
4438: 3571:. Mineola, New York: Dover Publications, Inc. p.  105:– 1, 2, 3, 4, 5, 6, 7, 8, ... (angle of rotation 3710:
Donald Sands (1975). "Crystal Systems and Geometry".
2419:. For many groups they can be simplified by omitting 1992:
It can be noticed that in groups with odd-order axes
2940:– Face centered (from the German "Flächenzentriert") 4619: 4586: 4558: 4510: 4462: 4409: 4356: 4287: 4070: 4061: 3984: 3892: 3837: 3804: 2934:– Body centered (from the German "Innenzentriert") 651:These are the crystallographic groups 3, 32, 3m, 81:The Hermann–Mauguin notation, compared with the 62:. It is named after the German crystallographer 3782: 3533:glide translation along half a face diagonal. 589:direction, assigned to the higher-order axis. 8: 2244: = ∞ are called limit groups or 279:generates 6 points, and 3 generates only 3, 74:, because it was adopted as standard by the 3741:the symmetry operations for space group 197 3694:Shubnikov, A.V., Belov, N.V. & others, 2256:These are the crystallographic groups of a 596:directions, which are perpendicular to the 592:Second position – symmetrically equivalent 4616: 4067: 3889: 3834: 3789: 3775: 3767: 2725:mm), but not to mmm; the short symbol for 621:Third position – symmetrically equivalent 367:generate four points. In the case of the 89:because it can easily be used to include 3700:, Oxford: Pergamon Press. 1964, page 70. 3602:International Tables for Crystallography 3207: 2882:do not exist in two-dimensional spaces. 2812:m. The possible symbols for limit group 832: 76:International Tables For Crystallography 3555: 629:directions. These can be 2, m, or  101:Rotation axes are denoted by a number 2252:Groups with several higher-order axes 7: 4683: 4023:Phase transformation crystallography 3761:Decoding the Hermann-Maguin Notation 2177:may be confusing; the corresponding 329:should be written. However we write 4530:Journal of Chemical Crystallography 3040:Rhombohedral in hexagonal setting, 2862:to represent primitive or centered 78:since their first edition in 1935. 600:-axis. These can be 2, m, or  25: 3623:"(International Tables) Abstract" 3064:, where the angle of rotation is 2376:Second position – diagonal 3 or 2078:directions, the rest set will be 576:Groups with one higher-order axis 4682: 4671: 4670: 4277: 3684:Point groups in three dimensions 3664:from the original on 2012-04-15. 2999: 2992: 2985: 2978: 2971: 2892:List of space groups § list 3713:Introduction to Crystallography 3567:Introduction to Crystallography 2958:– Base centered on C faces only 2952:– Base centered on B faces only 2946:– Base centered on A faces only 2693:can be simplified to 4/mmm (or 2094:2m, ... can be written as 4472:Bilbao Crystallographic Server 3125:The possible screw axes are: 2 1: 2750:crystallographic point groups 434:crystallographic point groups 283:should be written instead of 271:combination is equivalent to 3342: 3236: 3006: 1658: 1604: 1532: 1370: 1337: 1293: 1168: 1117: 1078: 1008: 976: 931: 880: 834: 625:directions, passing between 383:combination, where 2, 3, 6, 4520:Crystal Growth & Design 3812:Timeline of crystallography 2921:types in three dimensions: 4732: 4331:Nuclear magnetic resonance 3654:"Семейства точечных групп" 3332: 3323: 3314: 3306: 3298: 3289: 3280: 3272: 3259: 3250: 3242: 2889: 2158:The symbol of point group 924: 4666: 4535:Journal of Crystal Growth 4275: 3745:those for space group 199 3225: 3220: 3215: 2998: 2991: 2984: 2977: 2970: 2082:directions. Hence groups 2055:secondary directions and 1556: 1513: 1333: 1294: 1060: 1018: 972: 932: 572:direction, respectively. 46:is used to represent the 4401:Single particle analysis 4259:Hermann–Mauguin notation 3102:of the lattice vector. 3 2770:) and two limit groups ( 2395:. These can be 2, m, or 2131:. For example, symbols P 442:triclinic crystal system 44:Hermann–Mauguin notation 4525:Crystallography Reviews 4369:Isomorphous replacement 4163:Lomer–Cottrell junction 3596:Hahn, Th.; Klapper, H. 3122:of the lattice vector. 2423:-fold rotation axes in 676:trigonal crystal system 391:axes are present, axes 4038:Spinodal decomposition 3060:is noted by a number, 2816:are ∞∞ or 2∞, and for 1989: 1982: 514:). (The short form of 91:translational symmetry 72:international notation 68:Charles-Victor Mauguin 35: 4716:Chemical nomenclature 4578:Gregori Aminoff Prize 4374:Molecular replacement 3456:The orientation of a 2890:Further information: 1988: 1981: 363:, because both 4 and 33: 3884:Structure prediction 3171:enantiomorphic pairs 2783:Schoenflies notation 2768:Schoenflies notation 2258:cubic crystal system 2237:rotoinversion axis. 754:), and 6, 622, 6mm, 83:Schoenflies notation 4148:Cottrell atmosphere 4128:Partial dislocation 3872:Restriction theorem 183:, ... . 4568:Carl Hermann Medal 4379:Molecular dynamics 4226:Defects in diamond 4221:Stone–Wales defect 3867:Reciprocal lattice 3829:Biocrystallography 2709:mm) and 6/mmm (or 2179:Schoenflies symbol 1990: 1983: 325:axes are present, 131:improper rotations 85:, is preferred in 36: 4698: 4697: 4662: 4661: 4269:Thermal ellipsoid 4234: 4233: 4143:Frank–Read source 4103: 4102: 3969:Aperiodic crystal 3935: 3934: 3817:Crystallographers 3449: 3448: 3049: 3048: 2874:are only denoted 2872:glide reflections 1976: 1975: 581:First position – 229:Improper rotation 48:symmetry elements 16:(Redirected from 4723: 4686: 4685: 4674: 4673: 4617: 4540:Kristallografija 4394:Gerchberg–Saxton 4289:Characterisation 4281: 4264:Structure factor 4068: 4053:Ostwald ripening 3890: 3835: 3791: 3784: 3777: 3768: 3748: 3737: 3731: 3730: 3718: 3707: 3701: 3697:Colored Symmetry 3692: 3686: 3681: 3675: 3672: 3666: 3665: 3649: 3643: 3642: 3640: 3638: 3629:. Archived from 3619: 3613: 3612: 3610: 3608: 3593: 3587: 3586: 3570: 3560: 3208: 3121: 3119: 3118: 3115: 3112: 3101: 3099: 3098: 3095: 3092: 3081: 3079: 3078: 3073: 3070: 3032:Body centered, 3003: 2996: 2989: 2982: 2975: 2968: 2967: 2896:The symbol of a 2842: 2838: 2836: 2835: 2832: 2829: 2811: 2807: 2803: 2799: 2747: 2743: 2741: 2740: 2737: 2734: 2728: 2724: 2722: 2721: 2718: 2715: 2708: 2706: 2705: 2702: 2699: 2692: 2691: 2689: 2688: 2685: 2682: 2676: 2674: 2673: 2670: 2667: 2661: 2659: 2658: 2655: 2652: 2644: 2643: 2641: 2640: 2637: 2634: 2628: 2626: 2625: 2622: 2619: 2613: 2611: 2610: 2607: 2604: 2596: 2592: 2591: 2589: 2588: 2585: 2582: 2576: 2573: 2571: 2570: 2567: 2564: 2556: 2554: 2553: 2550: 2547: 2540: 2539: 2537: 2536: 2533: 2530: 2524: 2522: 2521: 2518: 2515: 2509: 2507: 2506: 2503: 2500: 2492: 2491: 2489: 2488: 2485: 2482: 2476: 2474: 2473: 2470: 2467: 2461: 2459: 2458: 2455: 2452: 2440: 2438: 2437: 2434: 2431: 2410: 2408: 2407: 2404: 2401: 2379: 2356: 2355: 2353: 2352: 2349: 2346: 2340: 2337: 2335: 2334: 2331: 2328: 2320: 2319: 2317: 2316: 2313: 2310: 2304: 2301: 2299: 2298: 2295: 2292: 2284: 2280: 2279: 2276: 2274: 2273: 2270: 2267: 2236: 2232: 2230: 2229: 2226: 2223: 2217:. Second, these 2216: 2214: 2213: 2210: 2207: 2176: 2174: 2173: 2170: 2167: 2161: 2142: 2138: 2134: 2105: 2101: 2097: 2093: 2089: 2085: 2072: 2070: 2069: 2066: 2063: 2054: 2052: 2051: 2048: 2045: 2035: 2000: 1972: 1971: 1969: 1968: 1965: 1962: 1956: 1954: 1953: 1950: 1947: 1941: 1939: 1938: 1935: 1932: 1921: 1920: 1918: 1917: 1914: 1911: 1905: 1903: 1902: 1899: 1896: 1890: 1888: 1887: 1884: 1881: 1870: 1869: 1867: 1866: 1863: 1860: 1854: 1852: 1851: 1848: 1845: 1839: 1837: 1836: 1833: 1830: 1819: 1818: 1816: 1815: 1812: 1809: 1803: 1801: 1800: 1797: 1794: 1788: 1786: 1785: 1782: 1779: 1768: 1767: 1765: 1764: 1761: 1758: 1752: 1750: 1749: 1746: 1743: 1737: 1735: 1734: 1731: 1728: 1717: 1716: 1714: 1713: 1710: 1707: 1701: 1699: 1698: 1695: 1692: 1686: 1684: 1683: 1680: 1677: 1650: 1637: 1624: 1622: 1621: 1618: 1615: 1600: 1587: 1575: 1567: 1561: 1552: 1550: 1549: 1546: 1543: 1528: 1526: 1525: 1522: 1519: 1509: 1507: 1506: 1503: 1500: 1493: 1485: 1483: 1482: 1479: 1476: 1470: 1463: 1461: 1460: 1457: 1454: 1448: 1441: 1439: 1438: 1435: 1432: 1426: 1419: 1417: 1416: 1413: 1410: 1404: 1399: 1397: 1396: 1393: 1390: 1384: 1290: 1288: 1287: 1284: 1281: 1271: 1269: 1268: 1265: 1262: 1252: 1250: 1249: 1246: 1243: 1233: 1231: 1230: 1227: 1224: 1214: 1212: 1211: 1208: 1205: 1195: 1193: 1192: 1189: 1186: 1161: 1150: 1137: 1135: 1134: 1131: 1128: 1114: 1103: 1092: 1075: 1073: 1072: 1069: 1066: 1056: 1049: 1042: 1035: 1028: 1023: 833: 825: 824: 822: 821: 818: 815: 809: 807: 806: 803: 800: 794: 792: 791: 788: 785: 777: 775: 774: 771: 768: 761: 757: 749: 748: 746: 745: 742: 739: 733: 731: 730: 727: 724: 718: 716: 715: 712: 709: 701: 699: 698: 695: 692: 685: 681: 678:), 4, 422, 4mm, 673: 671: 670: 667: 664: 658: 654: 647: 645: 643: 642: 639: 636: 618: 616: 614: 613: 610: 607: 559: 557: 556: 553: 550: 544: 542: 541: 538: 535: 529: 527: 526: 523: 520: 509: 507: 506: 503: 500: 494: 492: 491: 488: 485: 479: 477: 476: 473: 470: 459: 457: 456: 453: 450: 439: 417: 415: 413: 412: 409: 406: 398: 394: 390: 386: 382: 380: 379: 376: 373: 366: 362: 360: 359: 356: 353: 352: 344: 342: 341: 338: 335: 328: 324: 320: 316: 314: 313: 310: 307: 306: 298: 296: 295: 292: 289: 282: 278: 274: 270: 268: 267: 264: 261: 254: 250: 246: 242: 238: 234: 222: 215: 213: 212: 209: 206: 190: 186: 182: 178: 174: 170: 166: 162: 158: 154: 149: 128: 127: 125: 124: 119: 116: 21: 4731: 4730: 4726: 4725: 4724: 4722: 4721: 4720: 4711:Crystallography 4701: 4700: 4699: 4694: 4658: 4615: 4582: 4554: 4506: 4458: 4429:CrystalExplorer 4405: 4389:Phase retrieval 4352: 4283: 4282: 4273: 4230: 4209:Schottky defect 4108:Perfect crystal 4099: 4095:Abnormal growth 4057: 4043:Supersaturation 4006:Miscibility gap 3987: 3980: 3931: 3888: 3852:Bravais lattice 3833: 3800: 3798:Crystallography 3795: 3757: 3752: 3751: 3738: 3734: 3727: 3716: 3709: 3708: 3704: 3693: 3689: 3682: 3678: 3673: 3669: 3658:www.chem.msu.su 3651: 3650: 3646: 3636: 3634: 3621: 3620: 3616: 3606: 3604: 3595: 3594: 3590: 3583: 3562: 3561: 3557: 3552: 3454: 3444: 3442: 3435: 3433: 3426: 3424: 3417: 3416: 3409: 3408: 3401: 3399: 3392: 3390: 3383: 3382: 3375: 3373: 3369: 3362: 3360: 3353: 3352: 3345: 3338: 3336: 3329: 3327: 3320: 3318: 3311: 3310: 3303: 3302: 3295: 3293: 3286: 3284: 3277: 3276: 3269: 3267: 3263: 3256: 3254: 3247: 3246: 3239: 3204: 3200: 3196: 3192: 3188: 3184: 3180: 3176: 3168: 3164: 3160: 3156: 3152: 3148: 3144: 3140: 3136: 3132: 3128: 3116: 3113: 3110: 3109: 3107: 3105: 3096: 3093: 3090: 3089: 3087: 3085: 3074: 3071: 3068: 3067: 3065: 3054: 3024:Face centered, 3016:Base centered, 2919:Bravais lattice 2915: 2908: 2894: 2888: 2849: 2840: 2833: 2830: 2827: 2826: 2824: 2822: 2809: 2805: 2801: 2797: 2795: 2780: 2765: 2745: 2738: 2735: 2732: 2731: 2729: 2726: 2719: 2716: 2713: 2712: 2710: 2703: 2700: 2697: 2696: 2694: 2686: 2683: 2680: 2679: 2677: 2671: 2668: 2665: 2664: 2662: 2656: 2653: 2650: 2649: 2647: 2646: 2638: 2635: 2632: 2631: 2629: 2623: 2620: 2617: 2616: 2614: 2608: 2605: 2602: 2601: 2599: 2598: 2594: 2586: 2583: 2580: 2579: 2577: 2574: 2568: 2565: 2562: 2561: 2559: 2558: 2551: 2548: 2545: 2544: 2542: 2534: 2531: 2528: 2527: 2525: 2519: 2516: 2513: 2512: 2510: 2504: 2501: 2498: 2497: 2495: 2494: 2486: 2483: 2480: 2479: 2477: 2471: 2468: 2465: 2464: 2462: 2456: 2453: 2450: 2449: 2447: 2446: 2435: 2432: 2427: 2426: 2424: 2405: 2402: 2399: 2398: 2396: 2377: 2350: 2347: 2344: 2343: 2341: 2338: 2332: 2329: 2326: 2325: 2323: 2322: 2314: 2311: 2308: 2307: 2305: 2302: 2296: 2293: 2290: 2289: 2287: 2286: 2282: 2277: 2271: 2268: 2265: 2264: 2262: 2261: 2254: 2234: 2227: 2224: 2221: 2220: 2218: 2211: 2208: 2205: 2204: 2202: 2200: 2190: 2171: 2168: 2165: 2164: 2162: 2159: 2140: 2136: 2132: 2103: 2099: 2095: 2091: 2087: 2083: 2067: 2064: 2059: 2058: 2056: 2049: 2046: 2041: 2040: 2038: 2033: 2026: 2019: 2012: 1998: 1966: 1963: 1960: 1959: 1957: 1951: 1948: 1945: 1944: 1942: 1936: 1933: 1930: 1929: 1927: 1926: 1915: 1912: 1909: 1908: 1906: 1900: 1897: 1894: 1893: 1891: 1885: 1882: 1879: 1878: 1876: 1875: 1864: 1861: 1858: 1857: 1855: 1849: 1846: 1843: 1842: 1840: 1834: 1831: 1828: 1827: 1825: 1824: 1813: 1810: 1807: 1806: 1804: 1798: 1795: 1792: 1791: 1789: 1783: 1780: 1777: 1776: 1774: 1773: 1762: 1759: 1756: 1755: 1753: 1747: 1744: 1741: 1740: 1738: 1732: 1729: 1726: 1725: 1723: 1722: 1711: 1708: 1705: 1704: 1702: 1696: 1693: 1690: 1689: 1687: 1681: 1678: 1673: 1672: 1670: 1669: 1666: 1648: 1635: 1626: 1619: 1616: 1611: 1610: 1608: 1598: 1585: 1573: 1563: 1557: 1554: 1547: 1544: 1539: 1538: 1536: 1523: 1520: 1517: 1516: 1514: 1504: 1501: 1498: 1497: 1495: 1491: 1480: 1477: 1474: 1473: 1471: 1468: 1458: 1455: 1452: 1451: 1449: 1446: 1436: 1433: 1430: 1429: 1427: 1424: 1414: 1411: 1408: 1407: 1405: 1402: 1394: 1391: 1388: 1387: 1385: 1380: 1377: 1300: 1285: 1282: 1279: 1278: 1276: 1266: 1263: 1260: 1259: 1257: 1247: 1244: 1241: 1240: 1238: 1228: 1225: 1222: 1221: 1219: 1209: 1206: 1203: 1202: 1200: 1190: 1187: 1182: 1181: 1179: 1176: 1159: 1148: 1139: 1132: 1129: 1124: 1123: 1121: 1112: 1101: 1090: 1085: 1070: 1067: 1064: 1063: 1061: 1054: 1047: 1040: 1033: 1026: 1019: 1016: 939: 887: 819: 816: 813: 812: 810: 804: 801: 798: 797: 795: 789: 786: 783: 782: 780: 779: 772: 769: 766: 765: 763: 759: 755: 743: 740: 737: 736: 734: 728: 725: 722: 721: 719: 713: 710: 707: 706: 704: 703: 696: 693: 690: 689: 687: 683: 679: 668: 665: 662: 661: 659: 656: 652: 640: 637: 634: 633: 631: 630: 611: 608: 605: 604: 602: 601: 578: 554: 551: 548: 547: 545: 539: 536: 533: 532: 530: 524: 521: 518: 517: 515: 504: 501: 498: 497: 495: 489: 486: 483: 482: 480: 474: 471: 468: 467: 465: 454: 451: 448: 447: 445: 437: 430: 410: 407: 404: 403: 401: 400: 396: 392: 388: 384: 377: 374: 371: 370: 368: 364: 357: 354: 350: 349: 348: 346: 339: 336: 333: 332: 330: 326: 322: 318: 311: 308: 304: 303: 302: 300: 293: 290: 287: 286: 284: 280: 276: 272: 265: 262: 259: 258: 256: 252: 248: 244: 240: 236: 232: 220: 210: 207: 202: 201: 199: 188: 184: 180: 176: 172: 168: 164: 160: 156: 152: 147: 120: 117: 114: 113: 111: 106: 99: 87:crystallography 28: 23: 22: 15: 12: 11: 5: 4729: 4727: 4719: 4718: 4713: 4703: 4702: 4696: 4695: 4693: 4692: 4680: 4667: 4664: 4663: 4660: 4659: 4657: 4656: 4651: 4646: 4645: 4644: 4639: 4634: 4623: 4621: 4614: 4613: 4608: 4603: 4598: 4592: 4590: 4584: 4583: 4581: 4580: 4575: 4570: 4564: 4562: 4556: 4555: 4553: 4552: 4547: 4542: 4537: 4532: 4527: 4522: 4516: 4514: 4508: 4507: 4505: 4504: 4499: 4494: 4489: 4484: 4479: 4474: 4468: 4466: 4460: 4459: 4457: 4456: 4451: 4446: 4441: 4436: 4431: 4426: 4421: 4415: 4413: 4407: 4406: 4404: 4403: 4398: 4397: 4396: 4386: 4381: 4376: 4371: 4366: 4364:Direct methods 4360: 4358: 4354: 4353: 4351: 4350: 4349: 4348: 4343: 4333: 4328: 4327: 4326: 4321: 4311: 4310: 4309: 4304: 4293: 4291: 4285: 4284: 4276: 4274: 4272: 4271: 4266: 4261: 4256: 4251: 4249:Ewald's sphere 4246: 4241: 4235: 4232: 4231: 4229: 4228: 4223: 4218: 4217: 4216: 4211: 4201: 4200: 4199: 4194: 4192:Frenkel defect 4189: 4187:Bjerrum defect 4179: 4178: 4177: 4167: 4166: 4165: 4160: 4155: 4153:Peierls stress 4150: 4145: 4140: 4135: 4130: 4125: 4123:Burgers vector 4115: 4113:Stacking fault 4110: 4104: 4101: 4100: 4098: 4097: 4092: 4087: 4082: 4076: 4074: 4072:Grain boundary 4065: 4059: 4058: 4056: 4055: 4050: 4045: 4040: 4035: 4030: 4025: 4020: 4019: 4018: 4016:Liquid crystal 4013: 4008: 4003: 3992: 3990: 3982: 3981: 3979: 3978: 3977: 3976: 3966: 3965: 3964: 3954: 3953: 3952: 3947: 3936: 3933: 3932: 3930: 3929: 3924: 3919: 3914: 3909: 3904: 3898: 3896: 3887: 3886: 3881: 3879:Periodic table 3876: 3875: 3874: 3869: 3864: 3859: 3854: 3843: 3841: 3832: 3831: 3826: 3821: 3820: 3819: 3808: 3806: 3802: 3801: 3796: 3794: 3793: 3786: 3779: 3771: 3765: 3764: 3756: 3755:External links 3753: 3750: 3749: 3732: 3725: 3719:. p. 72. 3702: 3687: 3676: 3667: 3644: 3633:on 4 July 2013 3614: 3588: 3581: 3554: 3553: 3551: 3548: 3547: 3546: 3540: 3534: 3528: 3508:), the letter 3453: 3450: 3447: 3446: 3440: 3437: 3431: 3428: 3422: 3419: 3414: 3411: 3406: 3403: 3397: 3394: 3388: 3385: 3380: 3377: 3371: 3367: 3364: 3358: 3355: 3350: 3347: 3341: 3340: 3334: 3331: 3325: 3322: 3316: 3313: 3308: 3305: 3300: 3297: 3291: 3288: 3282: 3279: 3274: 3271: 3265: 3261: 3258: 3252: 3249: 3244: 3241: 3235: 3234: 3229: 3224: 3219: 3214: 3212:Crystal system 3202: 3198: 3194: 3190: 3186: 3182: 3178: 3174: 3169:. There are 4 3166: 3162: 3158: 3154: 3150: 3146: 3142: 3138: 3134: 3130: 3126: 3103: 3083: 3053: 3050: 3047: 3046: 3038: 3030: 3022: 3014: 3005: 3004: 2997: 2990: 2983: 2976: 2966: 2965: 2964:– Rhombohedral 2959: 2953: 2947: 2941: 2935: 2929: 2917:These are the 2914: 2911: 2906: 2887: 2884: 2848: 2845: 2820: 2793: 2778: 2763: 2413: 2412: 2381: 2374: 2253: 2250: 2195: 2185: 2024: 2017: 2010: 1974: 1973: 1924: 1922: 1873: 1871: 1822: 1820: 1771: 1769: 1720: 1718: 1667: 1661: 1657: 1656: 1654: 1652: 1645: 1643: 1641: 1639: 1633: 1631: 1629: 1627: 1607: 1603: 1602: 1595: 1593: 1591: 1589: 1583: 1581: 1579: 1577: 1571: 1569: 1555: 1535: 1531: 1530: 1512: 1510: 1488: 1486: 1466: 1464: 1444: 1442: 1422: 1420: 1400: 1378: 1373: 1369: 1368: 1365: 1363: 1360: 1358: 1355: 1353: 1350: 1348: 1345: 1343: 1336: 1335: 1332: 1330: 1327: 1325: 1322: 1320: 1317: 1315: 1312: 1310: 1307: 1301: 1296: 1292: 1291: 1274: 1272: 1255: 1253: 1236: 1234: 1217: 1215: 1198: 1196: 1177: 1171: 1167: 1166: 1164: 1162: 1157: 1155: 1153: 1151: 1146: 1144: 1142: 1140: 1120: 1116: 1115: 1110: 1108: 1106: 1104: 1099: 1097: 1095: 1093: 1088: 1086: 1081: 1077: 1076: 1059: 1057: 1052: 1050: 1045: 1043: 1038: 1036: 1031: 1029: 1024: 1017: 1011: 1007: 1006: 1003: 1001: 998: 996: 993: 991: 988: 986: 983: 981: 975: 974: 971: 969: 966: 964: 961: 959: 956: 954: 951: 949: 946: 940: 934: 930: 929: 926: 923: 920: 917: 914: 911: 908: 905: 902: 899: 896: 893: 888: 883: 879: 878: 875: 872: 869: 866: 863: 860: 857: 854: 851: 848: 845: 842: 839: 649: 648: 619: 590: 577: 574: 429: 426: 98: 95: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 4728: 4717: 4714: 4712: 4709: 4708: 4706: 4691: 4690: 4681: 4679: 4678: 4669: 4668: 4665: 4655: 4652: 4650: 4647: 4643: 4640: 4638: 4635: 4633: 4630: 4629: 4628: 4625: 4624: 4622: 4618: 4612: 4609: 4607: 4604: 4602: 4599: 4597: 4594: 4593: 4591: 4589: 4585: 4579: 4576: 4574: 4571: 4569: 4566: 4565: 4563: 4561: 4557: 4551: 4548: 4546: 4543: 4541: 4538: 4536: 4533: 4531: 4528: 4526: 4523: 4521: 4518: 4517: 4515: 4513: 4509: 4503: 4500: 4498: 4495: 4493: 4490: 4488: 4485: 4483: 4480: 4478: 4475: 4473: 4470: 4469: 4467: 4465: 4461: 4455: 4452: 4450: 4447: 4445: 4442: 4440: 4437: 4435: 4432: 4430: 4427: 4425: 4422: 4420: 4417: 4416: 4414: 4412: 4408: 4402: 4399: 4395: 4392: 4391: 4390: 4387: 4385: 4384:Patterson map 4382: 4380: 4377: 4375: 4372: 4370: 4367: 4365: 4362: 4361: 4359: 4355: 4347: 4344: 4342: 4339: 4338: 4337: 4334: 4332: 4329: 4325: 4322: 4320: 4317: 4316: 4315: 4312: 4308: 4305: 4303: 4300: 4299: 4298: 4295: 4294: 4292: 4290: 4286: 4280: 4270: 4267: 4265: 4262: 4260: 4257: 4255: 4254:Friedel's law 4252: 4250: 4247: 4245: 4242: 4240: 4237: 4236: 4227: 4224: 4222: 4219: 4215: 4212: 4210: 4207: 4206: 4205: 4202: 4198: 4197:Wigner effect 4195: 4193: 4190: 4188: 4185: 4184: 4183: 4182:Interstitials 4180: 4176: 4173: 4172: 4171: 4168: 4164: 4161: 4159: 4156: 4154: 4151: 4149: 4146: 4144: 4141: 4139: 4136: 4134: 4131: 4129: 4126: 4124: 4121: 4120: 4119: 4116: 4114: 4111: 4109: 4106: 4105: 4096: 4093: 4091: 4088: 4086: 4083: 4081: 4078: 4077: 4075: 4073: 4069: 4066: 4064: 4060: 4054: 4051: 4049: 4046: 4044: 4041: 4039: 4036: 4034: 4031: 4029: 4028:Precipitation 4026: 4024: 4021: 4017: 4014: 4012: 4009: 4007: 4004: 4002: 3999: 3998: 3997: 3996:Phase diagram 3994: 3993: 3991: 3989: 3983: 3975: 3972: 3971: 3970: 3967: 3963: 3960: 3959: 3958: 3955: 3951: 3948: 3946: 3943: 3942: 3941: 3938: 3937: 3928: 3925: 3923: 3920: 3918: 3915: 3913: 3910: 3908: 3905: 3903: 3900: 3899: 3897: 3895: 3891: 3885: 3882: 3880: 3877: 3873: 3870: 3868: 3865: 3863: 3860: 3858: 3855: 3853: 3850: 3849: 3848: 3845: 3844: 3842: 3840: 3836: 3830: 3827: 3825: 3822: 3818: 3815: 3814: 3813: 3810: 3809: 3807: 3803: 3799: 3792: 3787: 3785: 3780: 3778: 3773: 3772: 3769: 3762: 3759: 3758: 3754: 3746: 3742: 3736: 3733: 3728: 3726:0-486-67839-3 3722: 3715: 3714: 3706: 3703: 3699: 3698: 3691: 3688: 3685: 3680: 3677: 3671: 3668: 3663: 3659: 3655: 3652:Zorky, Petr. 3648: 3645: 3632: 3628: 3624: 3618: 3615: 3603: 3599: 3592: 3589: 3584: 3582:0-486-67839-3 3578: 3574: 3569: 3568: 3559: 3556: 3549: 3544: 3541: 3538: 3535: 3532: 3529: 3526: 3522: 3518: 3515: 3514: 3513: 3511: 3507: 3503: 3499: 3495: 3491: 3487: 3483: 3479: 3475: 3471: 3467: 3463: 3459: 3451: 3438: 3429: 3420: 3412: 3404: 3395: 3386: 3378: 3365: 3356: 3348: 3346:Group Number 3343: 3240:Group Number 3237: 3233: 3230: 3228: 3223: 3218: 3213: 3210: 3209: 3206: 3172: 3123: 3077: 3063: 3059: 3051: 3045: 3044: 3039: 3037: 3036: 3031: 3029: 3028: 3023: 3021: 3020: 3015: 3013: 3012: 3007: 3002: 2995: 2988: 2981: 2974: 2969: 2963: 2960: 2957: 2954: 2951: 2948: 2945: 2942: 2939: 2936: 2933: 2930: 2927: 2924: 2923: 2922: 2920: 2913:Lattice types 2912: 2910: 2903: 2899: 2893: 2885: 2883: 2881: 2877: 2873: 2869: 2865: 2861: 2857: 2853: 2846: 2844: 2819: 2815: 2792: 2788: 2784: 2777: 2773: 2769: 2762: 2758: 2753: 2751: 2444: 2430: 2422: 2418: 2394: 2390: 2386: 2382: 2375: 2372: 2368: 2364: 2360: 2359: 2358: 2259: 2251: 2249: 2247: 2243: 2238: 2199: 2194: 2189: 2184: 2180: 2156: 2154: 2153: 2148: 2147: 2130: 2129: 2124: 2123: 2118: 2117: 2112: 2111: 2081: 2077: 2062: 2044: 2036: 2030: 2023: 2016: 2009: 2005: 2001: 1995: 1987: 1980: 1925: 1923: 1874: 1872: 1823: 1821: 1772: 1770: 1721: 1719: 1676: 1668: 1664: 1659: 1655: 1653: 1646: 1644: 1642: 1640: 1634: 1632: 1630: 1628: 1614: 1605: 1596: 1594: 1592: 1590: 1584: 1582: 1580: 1578: 1572: 1570: 1566: 1560: 1542: 1533: 1511: 1489: 1487: 1467: 1465: 1445: 1443: 1423: 1421: 1401: 1383: 1379: 1376: 1371: 1366: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1338: 1331: 1328: 1326: 1323: 1321: 1318: 1316: 1313: 1311: 1308: 1305: 1302: 1299: 1275: 1273: 1256: 1254: 1237: 1235: 1218: 1216: 1199: 1197: 1185: 1178: 1174: 1169: 1165: 1163: 1158: 1156: 1154: 1152: 1147: 1145: 1143: 1141: 1127: 1118: 1111: 1109: 1107: 1105: 1100: 1098: 1096: 1094: 1089: 1087: 1084: 1079: 1058: 1053: 1051: 1046: 1044: 1039: 1037: 1032: 1030: 1025: 1022: 1015: 1009: 1004: 1002: 999: 997: 994: 992: 989: 987: 984: 982: 980: 977: 970: 967: 965: 962: 960: 957: 955: 952: 950: 947: 944: 941: 937: 927: 921: 918: 915: 912: 909: 906: 903: 900: 897: 894: 892: 889: 886: 881: 876: 873: 870: 867: 864: 861: 858: 855: 852: 849: 846: 843: 840: 838: 835: 831: 829: 753: 677: 628: 624: 620: 599: 595: 591: 588: 584: 580: 579: 575: 573: 571: 567: 563: 513: 463: 444:), 2, m, and 443: 435: 427: 425: 423: 418: 230: 224: 219: 205: 197: 192: 150: 144: 140: 136: 132: 123: 109: 104: 96: 94: 92: 88: 84: 79: 77: 73: 69: 65: 61: 57: 53: 49: 45: 41: 32: 19: 4687: 4675: 4620:Associations 4588:Organisation 4258: 4080:Disclination 4011:Polymorphism 3974:Quasicrystal 3917:Orthorhombic 3857:Miller index 3805:Key concepts 3735: 3712: 3705: 3695: 3690: 3679: 3670: 3657: 3647: 3635:. Retrieved 3631:the original 3626: 3617: 3605:. Retrieved 3601: 3591: 3566: 3558: 3542: 3536: 3530: 3524: 3520: 3516: 3509: 3505: 3501: 3497: 3493: 3489: 3481: 3477: 3473: 3469: 3465: 3461: 3455: 3452:Glide planes 3344:Second group 3124: 3075: 3061: 3055: 3042: 3041: 3034: 3033: 3026: 3025: 3018: 3017: 3010: 3009: 2961: 2955: 2949: 2943: 2937: 2931: 2925: 2916: 2902:lattice type 2895: 2886:Space groups 2875: 2867: 2859: 2855: 2852:Plane groups 2850: 2847:Plane groups 2817: 2813: 2790: 2786: 2775: 2771: 2760: 2756: 2754: 2557:mm, and for 2493:is mmm, for 2443:short symbol 2442: 2428: 2420: 2417:full symbols 2416: 2414: 2392: 2388: 2384: 2370: 2366: 2362: 2255: 2246:Curie groups 2241: 2240:Groups with 2239: 2197: 2192: 2187: 2182: 2157: 2151: 2150: 2145: 2144: 2127: 2126: 2121: 2120: 2115: 2114: 2109: 2108: 2079: 2075: 2060: 2042: 2032: 2028: 2021: 2014: 2007: 2003: 1997: 1993: 1991: 1674: 1662: 1612: 1564: 1558: 1540: 1381: 1374: 1339: 1303: 1297: 1183: 1172: 1125: 1082: 1020: 1013: 978: 942: 935: 890: 884: 650: 626: 622: 597: 593: 586: 585:direction – 582: 569: 565: 561: 512:orthorhombic 464:), and 222, 431: 419: 225: 217: 203: 195: 193: 146: 121: 107: 102: 100: 97:Point groups 80: 75: 71: 64:Carl Hermann 60:space groups 56:plane groups 52:point groups 43: 37: 4573:Ewald Prize 4341:Diffraction 4319:Diffraction 4302:Diffraction 4244:Bragg plane 4239:Bragg's law 4118:Dislocation 4033:Segregation 3945:Crystallite 3862:Point group 3627:it.iucr.org 3607:December 5, 3458:glide plane 3238:First group 3173:of axes: (3 3008:Primitive, 2928:– Primitive 2898:space group 2260:: 23, 432, 837:Schoenflies 510:, and mm2 ( 135:Schoenflies 4705:Categories 4357:Algorithms 4346:Scattering 4324:Scattering 4307:Scattering 4175:Slip bands 4138:Cross slip 3988:transition 3922:Tetragonal 3912:Monoclinic 3824:Metallurgy 3637:2 February 3550:References 3217:Tetragonal 3058:screw axis 3052:Screw axes 2880:Screw axes 2864:unit cells 2037:there are 841:H–M symbol 752:tetragonal 462:monoclinic 317:, because 18:H–M Symbol 4464:Databases 3927:Triclinic 3907:Hexagonal 3847:Unit cell 3839:Structure 3500:(such as 3227:Hexagonal 3197:), and (6 2076:secondary 828:hexagonal 627:secondary 594:secondary 139:Shubnikov 4677:Category 4512:Journals 4444:OctaDist 4439:JANA2020 4411:Software 4297:Electron 4214:F-center 4001:Eutectic 3962:Fiveling 3957:Twinning 3950:Equiaxed 3739:Compare 3662:Archived 3222:Trigonal 2870:, while 2843:or ∞∞m. 2285:3m, and 2135:m2 and P 2080:tertiary 623:tertiary 275:. Since 216:or  40:geometry 4689:Commons 4637:Germany 4314:Neutron 4204:Vacancy 4063:Defects 4048:GP-zone 3894:Systems 3486:diamond 3165:, and 6 3120:⁠ 3108:⁠ 3100:⁠ 3088:⁠ 3080:⁠ 3066:⁠ 2837:⁠ 2825:⁠ 2742:⁠ 2730:⁠ 2723:⁠ 2711:⁠ 2707:⁠ 2695:⁠ 2690:⁠ 2678:⁠ 2675:⁠ 2663:⁠ 2660:⁠ 2648:⁠ 2642:⁠ 2630:⁠ 2627:⁠ 2615:⁠ 2612:⁠ 2600:⁠ 2590:⁠ 2578:⁠ 2572:⁠ 2560:⁠ 2555:⁠ 2543:⁠ 2538:⁠ 2526:⁠ 2523:⁠ 2511:⁠ 2508:⁠ 2496:⁠ 2490:⁠ 2478:⁠ 2475:⁠ 2463:⁠ 2460:⁠ 2448:⁠ 2439:⁠ 2425:⁠ 2409:⁠ 2397:⁠ 2354:⁠ 2342:⁠ 2336:⁠ 2324:⁠ 2318:⁠ 2306:⁠ 2300:⁠ 2288:⁠ 2275:⁠ 2263:⁠ 2231:⁠ 2219:⁠ 2215:⁠ 2203:⁠ 2175:⁠ 2163:⁠ 2071:⁠ 2057:⁠ 2053:⁠ 2039:⁠ 1970:⁠ 1958:⁠ 1955:⁠ 1943:⁠ 1940:⁠ 1928:⁠ 1919:⁠ 1907:⁠ 1904:⁠ 1892:⁠ 1889:⁠ 1877:⁠ 1868:⁠ 1856:⁠ 1853:⁠ 1841:⁠ 1838:⁠ 1826:⁠ 1817:⁠ 1805:⁠ 1802:⁠ 1790:⁠ 1787:⁠ 1775:⁠ 1766:⁠ 1754:⁠ 1751:⁠ 1739:⁠ 1736:⁠ 1724:⁠ 1715:⁠ 1703:⁠ 1700:⁠ 1688:⁠ 1685:⁠ 1671:⁠ 1623:⁠ 1609:⁠ 1551:⁠ 1537:⁠ 1527:⁠ 1515:⁠ 1508:⁠ 1496:⁠ 1484:⁠ 1472:⁠ 1462:⁠ 1450:⁠ 1440:⁠ 1428:⁠ 1418:⁠ 1406:⁠ 1398:⁠ 1386:⁠ 1367:(12)22 1289:⁠ 1277:⁠ 1270:⁠ 1258:⁠ 1251:⁠ 1239:⁠ 1232:⁠ 1220:⁠ 1213:⁠ 1201:⁠ 1194:⁠ 1180:⁠ 1136:⁠ 1122:⁠ 1074:⁠ 1062:⁠ 823:⁠ 811:⁠ 808:⁠ 796:⁠ 793:⁠ 781:⁠ 776:⁠ 764:⁠ 747:⁠ 735:⁠ 732:⁠ 720:⁠ 717:⁠ 705:⁠ 700:⁠ 688:⁠ 672:⁠ 660:⁠ 644:⁠ 632:⁠ 615:⁠ 603:⁠ 583:primary 558:⁠ 546:⁠ 543:⁠ 531:⁠ 528:⁠ 516:⁠ 508:⁠ 496:⁠ 493:⁠ 481:⁠ 478:⁠ 466:⁠ 458:⁠ 446:⁠ 414:⁠ 402:⁠ 381:⁠ 369:⁠ 361:⁠ 347:⁠ 343:⁠ 331:⁠ 315:⁠ 301:⁠ 297:⁠ 285:⁠ 269:⁠ 257:⁠ 221:  214:⁠ 200:⁠ 191:axis). 129:). 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Index

H–M Symbol

geometry
symmetry elements
point groups
plane groups
space groups
Carl Hermann
Charles-Victor Mauguin
Schoenflies notation
crystallography
translational symmetry
improper rotations
Schoenflies
Shubnikov
macron
Improper rotation
group
crystallographic point groups
triclinic crystal system
monoclinic
orthorhombic
trigonal crystal system
tetragonal
hexagonal
Schoenflies


Schoenflies symbol
Curie groups

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