593:
391:
29:
481:
region is usually fine grained in texture and possesses colored banding. Much of the coloration is due to the inclusion of copper or associated minerals in progressive stages of hydrothermal precipitation.
613:
631:
368:
in 1806, and named by him from δατεῖσθαι, "to divide," and λίθος, "stone," in allusion to the granular structure of the massive mineral.
666:
608:
82:
204:
169:
Crystal prismatic, short to tabular; Botryoidal or globular with columnar structure; granular to compact; cryptocrystalline
671:
227:
661:
646:
403:
72:
651:
194:
184:
522:
379:
and nodular masses. The luster is vitreous and may be brown, yellow, light green or colorless. The
297:
217:
656:
540:
174:
411:
341:
139:
598:
One or more of the preceding sentences incorporates text from a publication now in the
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477:. Unlike most localities throughout the world, the occurrence of datolite in the
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122:
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419:
390:
372:
159:
Colorless or white; may be grayish, yellow, green, pale green, red, pink, etc.
113:
97:
33:
Datolite on sphalerite from San Luis Potosí, Mexico (size: 6.2 x 5.3 x 2.8 cm)
28:
579:
431:
338:
463:
427:
361:
287:
535:
510:
617:. Vol. 7 (11th ed.). Cambridge University Press. p. 846.
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568:
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of
Michigan’s Copper Country (size: 4.1 x 3.3 x 1.7 cm)
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222:Vitreous, rarely subresinous on fracture surface
473:often filling vesicles along with zeolites in
458:. It is common in the copper deposits of the
8:
146:c = 4.84 ; β = 90.15°; Z = 4
534:
232:Transparent to translucent, rarely opaque
501:
466:. It occurs as a secondary mineral in
18:
7:
511:"IMA–CNMNC approved mineral symbols"
394:Polished datolite nodule from the
14:
591:
27:
426:. Associated minerals include
1:
371:Datolite crystallizes in the
364:). It was first observed by
315:Fluoresces blue under SW UV
688:
667:Minerals in space group 14
375:system forming prismatic
26:
614:Encyclopædia Britannica
558:Handbook of Mineralogy
515:Mineralogical Magazine
399:
393:
83:Strunz classification
672:Luminescent minerals
189:Conchoidal to uneven
16:Nesosilicate mineral
662:Monoclinic minerals
536:10.1180/mgm.2021.43
527:2021MinM...85..291W
509:Warr, L.N. (2021).
492:form of datolite.
400:
247:Optical properties
144:a = 9.62, b = 7.6
632:Mineral galleries
412:Connecticut River
326:
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268:= 1.653 - 1.654 n
117:
679:
647:Calcium minerals
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385:specific gravity
256:Refractive index
238:Specific gravity
209:
111:
109:Prismatic (2/m)
60:
59:(repeating unit)
31:
19:
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607:, ed. (1911). "
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404:type localities
387:is 2.8 - 3.0.
383:is 5.5 and the
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34:
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626:External links
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605:Chisholm, Hugh
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521:(3): 291–320.
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302:r > v; weak
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151:Identification
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93:Crystal system
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652:Nesosilicates
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600:public domain
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479:Lake Superior
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471:igneous rocks
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460:Lake Superior
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381:Mohs hardness
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334:
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301:
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292:Measured: 74°
291:
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278:Birefringence
275:
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165:Crystal habit
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105:Crystal class
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25:
20:
612:
586:
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564:
553:
518:
514:
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485:
484:
436:babingtonite
401:
370:
342:nesosilicate
328:
327:
311:fluorescence
127:
48:Nesosilicate
414:valley and
406:are in the
396:Quincy Mine
366:Jens Esmark
308:Ultraviolet
250:Biaxial (-)
242:2.96 – 3.00
228:Diaphaneity
123:Space group
641:Categories
580:Webmineral
496:References
490:botryoidal
486:Botryolite
462:region of
420:Aust-Agder
373:monoclinic
320:References
298:Dispersion
205:Mohs scale
114:H-M symbol
98:Monoclinic
73:IMA symbol
657:Gemstones
545:235729616
442:, native
432:danburite
339:hydroxide
282:δ = 0.044
264:= 1.626 n
140:Unit cell
609:Datolite
464:Michigan
456:zeolites
428:prehnite
408:diabases
377:crystals
329:Datolite
288:2V angle
212:5 to 5.5
208:hardness
195:Tenacity
185:Fracture
175:Cleavage
44:Category
22:Datolite
602::
523:Bibcode
448:calcite
440:epidote
416:Arendal
410:of the
333:calcium
272:= 1.670
199:Brittle
87:9.AJ.20
55:Formula
39:General
596:
569:Mindat
543:
475:basalt
452:quartz
444:copper
424:Norway
218:Luster
112:(same
63:CaBSiO
541:S2CID
488:is a
468:mafic
336:boron
331:is a
156:Color
454:and
402:The
179:None
67:(OH)
611:".
531:doi
77:Dat
643::
539:.
529:.
519:85
517:.
513:.
450:,
446:,
438:,
434:,
430:,
422:,
418:,
360:(O
352:Si
346:Ca
344:,
134:/c
547:.
533::
525::
362:H
358:4
355:O
349:B
270:γ
266:β
262:α
260:n
132:1
130:2
128:P
116:)
65:4
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