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Thénardite

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Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)"
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system and often forms yellowish, reddish to gray white prismatic crystals although usually in massive crust deposits. Thénardite is
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In humid conditions, thénardite progressively absorbs water and converts to the deca-hydrated mineral
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Fluorescent and phosphorescent: short UV=bright white, long UV=yellow-green
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Interpenetration twinning on {001}; also on {100}; common on {110}; {011}
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White, grayish white, yellowish white, reddish white, brownish white
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You can help Knowledge by 542:area. Cluster is 6 × 5.5 cm. 403:environments, specifically 768: 732:Minerals in space group 70 656: 217:Splintery, uneven, hackly 37: 610:Thénardite at Webmineral 411:. It also occurs in dry 280:2.67–2.7, average = 2.68 635:Handbook of Mineralogy 567:Mineralogical Magazine 752:Sulfate mineral stubs 727:Orthorhombic minerals 520:Soda Lake, California 453:Louis Jacques Thénard 399:which occurs in arid 368:Other characteristics 95:Strunz classification 747:Luminescent minerals 624:Thénardite at Mindat 250:Vitreous to resinous 588:10.1180/mgm.2021.43 579:2021MinM...85..291W 561:Warr, L.N. (2021). 538:crystals from the 285:Optical properties 152:, b = 12.3 Å 121:Dipyramidal (mmm) 679: 678: 540:Boron, California 382: 381: 16:(Redirected from 759: 722:Sulfate minerals 700: 693: 686: 658: 637: 632: 626: 621: 612: 607: 601: 600: 590: 558: 531: 515: 503: 387:is an anhydrous 363:Soluble in water 294:Refractive index 276:Specific gravity 237: 69: 68:(repeating unit) 42: 30: 21: 767: 766: 762: 761: 760: 758: 757: 756: 717:Sodium minerals 707: 706: 705: 704: 664:sulfate mineral 646: 641: 640: 633: 629: 622: 615: 608: 604: 560: 559: 555: 550: 543: 532: 523: 516: 507: 504: 495: 488: 484: 480: 427:. It occurs in 423:deposit around 398: 394: 309: 305: 301: 235: 153: 126:: (2/m 2/m 2/m) 122: 79: 75: 67: 66: 58:Sulfate mineral 45: 28: 23: 22: 15: 12: 11: 5: 765: 763: 755: 754: 749: 744: 739: 734: 729: 724: 719: 709: 708: 703: 702: 695: 688: 680: 677: 676: 655: 654: 645: 642: 639: 638: 627: 613: 602: 573:(3): 291–320. 552: 551: 549: 546: 545: 544: 533: 526: 524: 517: 510: 508: 505: 498: 494: 491: 486: 482: 478: 396: 392: 389:sodium sulfate 380: 379: 377: 373: 372: 369: 365: 364: 361: 355: 354: 351: 342: 341: 338: 332: 331: 328: 322: 321: 318: 312: 311: 307: 303: 299: 296: 290: 289: 286: 282: 281: 278: 272: 271: 268: 262: 261: 258: 252: 251: 248: 242: 241: 238: 229: 228: 225: 219: 218: 215: 209: 208: 205: 199: 198: 195: 189: 188: 185: 179: 178: 175: 171: 170: 167: 161: 160: 159:Identification 156: 155: 148:a = 5.86  146: 140: 139: 134: 128: 127: 119: 113: 112: 107: 105:Crystal system 101: 100: 97: 91: 90: 87: 81: 80: 77: 73: 70: 60: 59: 56: 52: 51: 47: 46: 43: 35: 34: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 764: 753: 750: 748: 745: 743: 740: 738: 737:Cave minerals 735: 733: 730: 728: 725: 723: 720: 718: 715: 714: 712: 701: 696: 694: 689: 687: 682: 681: 675: 673: 669: 665: 660: 652: 648: 647: 643: 636: 631: 628: 625: 620: 618: 614: 611: 606: 603: 598: 594: 589: 584: 580: 576: 572: 568: 564: 557: 554: 547: 541: 537: 530: 525: 521: 514: 509: 502: 497: 492: 490: 476: 471: 469: 465: 461: 456: 455:(1777–1826). 454: 450: 446: 442: 438: 434: 430: 426: 422: 418: 414: 410: 406: 402: 390: 386: 378: 374: 370: 366: 362: 360: 356: 352: 350: 347: 343: 339: 337: 333: 329: 327: 323: 319: 317: 316:Birefringence 313: 297: 295: 291: 287: 283: 279: 277: 273: 269: 267: 263: 259: 257: 253: 249: 247: 243: 239: 234: 230: 226: 224: 220: 216: 214: 210: 206: 204: 200: 196: 194: 190: 186: 184: 183:Crystal habit 180: 176: 172: 168: 166: 162: 157: 151: 147: 145: 141: 138: 135: 133: 129: 125: 120: 118: 117:Crystal class 114: 111: 108: 106: 102: 98: 96: 92: 88: 86: 82: 71: 65: 61: 57: 53: 48: 41: 36: 31: 19: 672:expanding it 661: 650: 644:Bibliography 630: 605: 570: 566: 556: 472: 470:radiation. 460:orthorhombic 457: 441:Ciempozuelos 384: 383: 349:fluorescence 169:142.04 g/mol 165:Formula mass 136: 110:Orthorhombic 464:fluorescent 391:mineral, Na 371:Salty taste 346:Ultraviolet 326:Pleochroism 288:Biaxial (+) 270:Transparent 266:Diaphaneity 132:Space group 711:Categories 548:References 536:mirabilite 475:mirabilite 433:Mount Etna 385:Thénardite 376:References 359:Solubility 306:= 1.477, n 302:= 1.471, n 233:Mohs scale 124:H-M symbol 85:IMA symbol 33:Thénardite 18:Thenardite 742:Evaporite 597:235729616 431:caves on 425:fumaroles 421:sublimate 401:evaporite 320:δ = 0.013 144:Unit cell 429:volcanic 415:and old 336:2V angle 236:hardness 223:Tenacity 213:Fracture 203:Cleavage 193:Twinning 55:Category 575:Bibcode 493:Gallery 310:= 1.484 227:Brittle 99:7.AC.25 64:Formula 50:General 595:  485:· 10 H 445:Madrid 409:playas 256:Streak 246:Luster 666:is a 593:S2CID 449:Spain 437:Italy 413:caves 405:lakes 260:White 174:Color 668:stub 477:, Na 417:mine 407:and 330:none 137:Fddd 583:doi 489:O. 340:83° 240:2.5 89:Thn 713:: 616:^ 591:. 581:. 571:85 569:. 565:. 481:SO 468:UV 447:, 443:, 435:, 395:SO 76:SO 72:Na 699:e 692:t 685:v 674:. 599:. 585:: 577:: 487:2 483:4 479:2 397:4 393:2 308:γ 304:β 300:α 298:n 150:Å 78:4 74:2 20:)

Index

Thenardite

Formula
IMA symbol
Strunz classification
Crystal system
Orthorhombic
Crystal class
H-M symbol
Space group
Unit cell
Å
Formula mass
Crystal habit
Twinning
Cleavage
Fracture
Tenacity
Mohs scale
Luster
Streak
Diaphaneity
Specific gravity
Refractive index
Birefringence
Pleochroism
2V angle
Ultraviolet
fluorescence
Solubility

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