26:
336:
585:
425:
546:
580:
99:
539:
404:
575:
210:
565:
243:
590:
532:
25:
570:
393:
185:
Tabular prismatic striated crystals exhibiting pseudohexagonal outline; coatings and fine-grained aggregates
89:
200:
396:(1852–1908), who discovered radioactivity in 1896. Becquerelite contains about 70% uranium by weight.
437:
233:
223:
455:
190:
153:
516:
445:
271:
253:
55:
472:
441:
109:
559:
512:
459:
386:
293:
180:
121:
48:
494:
114:
339:
303:
136:
128:
31:
313:
450:
335:
382:
358:
483:
175:
Amber-yellow, golden to lemon-yellow, yellow-orange, brownish yellow
400:
308:
X = colourless to pale yellow, Y = Z = yellow to deep yellow
520:
586:
Uranium mining in the
Democratic Republic of the Congo
195:
Perfect on {001}; imperfect on {101}, {010} and {110}
345:
330:
322:
312:
302:
292:
270:
262:
252:
242:
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222:
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152:
135:
120:
108:
98:
88:
54:
44:
39:
18:
540:
381:O). It is a secondary mineral which contains
8:
399:It is mainly mined in Kasolo of the former
547:
533:
24:
449:
392:It was named after the French physicist
385:and is a bright yellow colour. It has a
361:mineral with the chemical formula: Ca(UO
416:
15:
34:needles from the old Shinkolobwe mine
7:
508:
506:
426:"IMA–CNMNC approved mineral symbols"
30:Spray of becquerelite crystals with
162:c = 14.9238 Å; Z = 4
519:. You can help Knowledge (XXG) by
14:
405:Democratic Republic of the Congo
334:
511:This article about a specific
1:
607:
581:Minerals in space group 33
505:
23:
394:Antoine Henri Becquerel
473:Handbook of Mineralogy
430:Mineralogical Magazine
326:Commonly contains lead
576:Orthorhombic minerals
403:, in the present day
331:Other characteristics
100:Strunz classification
566:Uranium(VI) minerals
228:Adamantine to greasy
160:b = 12.3781 Å,
158:a = 13.8378 Å,
591:Oxide mineral stubs
451:10.1180/mgm.2021.43
442:2021MinM...85..291W
424:Warr, L.N. (2021).
263:Optical properties
528:
527:
352:
351:
323:Common impurities
284:= 1.815 – 1.825 n
280:= 1.725 – 1.735 n
598:
549:
542:
535:
507:
497:
492:
486:
481:
475:
470:
464:
463:
453:
421:
338:
272:Refractive index
254:Specific gravity
215:
126:Pyramidal (mm2)
61:
60:(repeating unit)
28:
16:
606:
605:
601:
600:
599:
597:
596:
595:
556:
555:
554:
553:
503:
501:
500:
495:Webmineral data
493:
489:
482:
478:
471:
467:
423:
422:
418:
413:
380:
376:
372:
368:
364:
288:= 1.825 – 1.830
287:
283:
279:
213:
161:
159:
147:
127:
83:
79:
75:
71:
67:
59:
58:
35:
12:
11:
5:
604:
602:
594:
593:
588:
583:
578:
573:
571:Oxide minerals
568:
558:
557:
552:
551:
544:
537:
529:
526:
525:
499:
498:
487:
476:
465:
436:(3): 291–320.
415:
414:
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409:
378:
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349:
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342:
332:
328:
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207:
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197:
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183:
177:
176:
173:
169:
168:
167:Identification
164:
163:
156:
150:
149:
145:
139:
133:
132:
124:
118:
117:
112:
110:Crystal system
106:
105:
102:
96:
95:
92:
86:
85:
81:
77:
73:
69:
65:
62:
52:
51:
46:
42:
41:
37:
36:
29:
21:
20:
13:
10:
9:
6:
4:
3:
2:
603:
592:
589:
587:
584:
582:
579:
577:
574:
572:
569:
567:
564:
563:
561:
550:
545:
543:
538:
536:
531:
530:
524:
522:
518:
514:
513:oxide mineral
509:
504:
496:
491:
488:
485:
480:
477:
474:
469:
466:
461:
457:
452:
447:
443:
439:
435:
431:
427:
420:
417:
410:
408:
406:
402:
397:
395:
390:
388:
387:Mohs hardness
384:
360:
356:
348:
344:
341:
337:
333:
329:
325:
321:
318:Measured: 32°
317:
315:
311:
307:
305:
301:
297:
295:
294:Birefringence
291:
275:
273:
269:
265:
261:
257:
255:
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231:
227:
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217:
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204:
202:
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188:
184:
182:
181:Crystal habit
178:
174:
170:
165:
157:
155:
151:
143:
140:
138:
134:
130:
125:
123:
122:Crystal class
119:
116:
113:
111:
107:
103:
101:
97:
93:
91:
87:
63:
57:
53:
50:
49:Oxide mineral
47:
43:
38:
33:
27:
22:
17:
521:expanding it
510:
502:
490:
479:
468:
433:
429:
419:
398:
391:
389:of about 2.
355:Becquerelite
354:
353:
141:
115:Orthorhombic
19:Becquerelite
340:Radioactive
304:Pleochroism
266:Biaxial (−)
248:Transparent
244:Diaphaneity
137:Space group
560:Categories
484:Mindat.org
411:References
346:References
211:Mohs scale
129:H-M symbol
90:IMA symbol
32:uranophane
460:235729616
298:δ = 0.100
154:Unit cell
314:2V angle
258:5.09–5.2
214:hardness
201:Tenacity
191:Cleavage
45:Category
438:Bibcode
383:calcium
359:uranium
205:Brittle
131:: (mm2)
104:4.GB.10
56:Formula
40:General
458:
238:Yellow
234:Streak
224:Lustre
172:Colour
515:is a
456:S2CID
401:Zaire
357:is a
64:Ca(UO
517:stub
377:·8(H
373:(OH)
80:·8(H
76:(OH)
446:doi
218:2.5
94:Bqr
562::
454:.
444:.
434:85
432:.
428:.
407:.
142:Pn
84:O)
548:e
541:t
534:v
523:.
462:.
448::
440::
379:2
375:6
371:4
369:O
367:6
365:)
363:2
286:γ
282:β
278:α
276:n
148:a
146:1
144:2
82:2
78:6
74:4
72:O
70:6
68:)
66:2
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