Knowledge (XXG)

Pseudobrookite

Source 📝

29: 588: 700: 85: 695: 189: 222: 554: 690: 75: 349:. The name is from Greek ψευδής, for false, and brookite because of its misleading similar appearance to 559: 463: 179: 600: 502: 212: 202: 618: 169: 531: 134: 672: 608: 342: 250: 232: 54: 489: 604: 337:
Pseudobrookite was first described in 1878 for an occurrence in Uroi Hill (Arany Hill),
521: 95: 654: 33:
Spray of pseudobrookite needles from Topaz Mountain in Utah (size: 2.7 × 2.0 × 1.6 cm)
28: 684: 622: 357: 356:
Pseudobrookite forms as pneumatolytic deposition and alteration within titanium-rich
310: 272: 159: 107: 47: 527: 498: 100: 550: 540: 536: 511: 467: 436: 424: 404: 377: 122: 114: 408: 400: 388: 515: 476: 416: 396: 392: 384: 373: 365: 361: 350: 307: 282: 613: 563: 485: 458: 440: 346: 338: 640: 567: 544: 506: 471: 412: 369: 493: 480: 454: 450: 428: 420: 432: 304: 376:
contained in the volcanics. It also commonly occurs in
291: 281: 271: 249: 241: 231: 221: 211: 201: 188: 178: 168: 158: 150: 145: 133: 121: 106: 94: 84: 74: 53: 43: 38: 21: 8: 27: 612: 154:Dark reddish brown, brownish black, black 650: 648: 636: 634: 632: 579: 18: 668: 666: 664: 662: 227:Opaque, transparent in thin splinters 7: 589:"IMA–CNMNC approved mineral symbols" 164:Prismatic to needle like, striated 139:a = 9.81 Å, b = 9.95 Å, 14: 141:c = 3.73 Å; Z = 8 1: 641:Pseudobrookite on Mindat.org 372:. It may be associated with 207:Adamantine, greasy, metallic 16:Iron titanium oxide mineral 717: 701:Minerals in space group 63 383:It occurs associated with 555:Sierra County, New Mexico 26: 655:Pseudobrookite on Webmin 333:Discovery and occurrence 184:Uneven to subconchoidal 673:Handbook of Mineralogy 593:Mineralogical Magazine 696:Orthorhombic minerals 446:Occurrences include: 86:Strunz classification 614:10.1180/mgm.2021.43 605:2021MinM...85..291W 587:Warr, L.N. (2021). 560:Cerro los Remedios 503:São Miguel Islands 242:Optical properties 112:Dipyramidal (mmm) 532:Juab County, Utah 298: 297: 174:Distinct on {010} 708: 675: 670: 657: 652: 643: 638: 627: 626: 616: 584: 343:Hunedoara County 313:with formula: Fe 251:Refractive index 233:Specific gravity 194: 60: 59:(repeating unit) 31: 19: 716: 715: 711: 710: 709: 707: 706: 705: 681: 680: 679: 678: 671: 660: 653: 646: 639: 630: 586: 585: 581: 576: 490:Murcia Province 335: 328: 324: 320: 316: 266: 262: 258: 192: 140: 117:: (2/m 2/m 2/m) 113: 70: 66: 58: 57: 34: 17: 12: 11: 5: 714: 712: 704: 703: 698: 693: 691:Oxide minerals 683: 682: 677: 676: 658: 644: 628: 599:(3): 291–320. 578: 577: 575: 572: 571: 570: 557: 547: 534: 524: 522:Reunion Island 519: 509: 496: 483: 474: 461: 358:volcanic rocks 334: 331: 326: 322: 318: 314: 301:Pseudobrookite 296: 295: 293: 289: 288: 285: 279: 278: 275: 269: 268: 264: 260: 256: 253: 247: 246: 243: 239: 238: 235: 229: 228: 225: 219: 218: 215: 209: 208: 205: 199: 198: 195: 186: 185: 182: 176: 175: 172: 166: 165: 162: 156: 155: 152: 148: 147: 146:Identification 143: 142: 137: 131: 130: 125: 119: 118: 110: 104: 103: 98: 96:Crystal system 92: 91: 88: 82: 81: 78: 72: 71: 68: 64: 61: 51: 50: 45: 41: 40: 36: 35: 32: 24: 23: 22:Pseudobrookite 15: 13: 10: 9: 6: 4: 3: 2: 713: 702: 699: 697: 694: 692: 689: 688: 686: 674: 669: 667: 665: 663: 659: 656: 651: 649: 645: 642: 637: 635: 633: 629: 624: 620: 615: 610: 606: 602: 598: 594: 590: 583: 580: 573: 569: 565: 561: 558: 556: 552: 548: 546: 542: 538: 535: 533: 529: 525: 523: 520: 517: 513: 510: 508: 504: 500: 497: 495: 491: 487: 484: 482: 478: 475: 473: 469: 465: 462: 460: 456: 452: 449: 448: 447: 444: 442: 438: 434: 430: 426: 422: 418: 414: 410: 406: 402: 398: 394: 390: 386: 381: 379: 375: 371: 367: 363: 359: 354: 352: 348: 344: 340: 332: 330: 312: 311:oxide mineral 309: 306: 302: 294: 290: 287:Measured: 50° 286: 284: 280: 276: 274: 273:Birefringence 270: 254: 252: 248: 244: 240: 236: 234: 230: 226: 224: 220: 216: 214: 210: 206: 204: 200: 196: 191: 187: 183: 181: 177: 173: 171: 167: 163: 161: 160:Crystal habit 157: 153: 149: 144: 138: 136: 132: 129: 126: 124: 120: 116: 111: 109: 108:Crystal class 105: 102: 99: 97: 93: 89: 87: 83: 79: 77: 73: 62: 56: 52: 49: 48:Oxide mineral 46: 42: 37: 30: 25: 20: 596: 592: 582: 528:Thomas Range 445: 382: 355: 336: 300: 299: 127: 101:Orthorhombic 551:Black Range 541:Lemolo Lake 537:Crater Lake 512:Kilimanjaro 468:Puy-de-Dome 437:cassiterite 425:spessartine 405:ferrosilite 378:lithophysae 245:Biaxial (+) 223:Diaphaneity 123:Space group 685:Categories 574:References 457:district, 321:or (Fe,Fe) 292:References 190:Mohs scale 115:H-M symbol 76:IMA symbol 623:235729616 464:Mont Dore 409:tridymite 401:enstatite 389:magnetite 374:xenoliths 277:δ = 0.070 263:= 2.390 n 259:= 2.350 n 237:4.33–4.39 135:Unit cell 516:Tanzania 477:Vesuvius 417:sanidine 397:ilmenite 393:bixbyite 385:hematite 366:rhyolite 362:andesite 360:such as 351:brookite 325:(Ti,Fe)O 308:titanium 283:2V angle 193:hardness 180:Fracture 170:Cleavage 44:Category 601:Bibcode 564:Durango 486:Jumilla 459:Germany 453:in the 441:apatite 347:Romania 339:Simeria 267:= 2.420 90:4.CB.15 55:Formula 39:General 621:  568:Mexico 545:Oregon 507:Azores 472:France 413:quartz 370:basalt 303:is an 213:Streak 203:Luster 619:S2CID 499:Faial 494:Spain 481:Italy 455:Eifel 451:Mayen 429:beryl 421:topaz 217:Brown 151:Color 549:the 539:and 526:the 501:and 439:and 433:mica 305:iron 128:Bbmm 80:Pbrk 609:doi 368:or 317:TiO 67:TiO 687:: 661:^ 647:^ 631:^ 617:. 607:. 597:85 595:. 591:. 566:, 562:, 553:, 543:, 530:, 514:, 505:, 492:, 488:, 479:, 470:, 466:, 443:. 435:, 431:, 427:, 423:, 419:, 415:, 411:, 407:, 399:, 395:, 391:, 387:, 380:. 364:, 353:. 345:, 341:, 329:. 63:Fe 625:. 611:: 603:: 518:; 403:- 327:5 323:2 319:5 315:2 265:γ 261:β 257:α 255:n 197:6 69:5 65:2

Index


Oxide mineral
Formula
IMA symbol
Strunz classification
Crystal system
Orthorhombic
Crystal class
H-M symbol
Space group
Unit cell
Crystal habit
Cleavage
Fracture
Mohs scale
Luster
Streak
Diaphaneity
Specific gravity
Refractive index
Birefringence
2V angle
iron
titanium
oxide mineral
Simeria
Hunedoara County
Romania
brookite
volcanic rocks

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.