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Putnisite has unique chemical and structural properties, and does not appear to be related to any of the existing mineralogical families. Crystals are translucent purple, but show distinct
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350:(from pale purple to pale bluish grey, depending on the angle of observation) and leave pink streaks when rubbed on a flat surface.
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Putnisite occurs as small (< 0.5 mm) cube-like crystals in volcanic rock. The mineral formed during the
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in 2012 the mineral was named after mineralogists Andrew and
Christine Putnis.
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in 2007 during mining activity. Following identification and recognition by the
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Putnisite, from Polar Bear
Peninsula, Western Australia, Australia
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Distinct: X pale bluish grey, Y pale purple, Z pale purple
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331:. It was discovered on the Polar Bear Peninsula in
540:"Putnisite: Putnisite mineral information and data"
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454:"New Mineral Shows Nature's Infinite Variability"
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388:"IMA–CNMNC approved mineral symbols"
584:. You can help Knowledge (XXG) by
151:c = 18.270 Å; Z = 4
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572:This article about a specific
1:
486:Elliott, P. (February 2014).
506:10.1180/minmag.2014.078.1.10
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666:Minerals in space group 62
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303:is a mineral composed of
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542:. Mindat.org. 2014-04-07
456:. University of Adelaide
494:Mineralogical Magazine
392:Mineralogical Magazine
661:Orthorhombic minerals
174:Pseudocubic crystals
413:10.1180/mgm.2021.43
404:2021MinM...85..291W
386:Warr, L.N. (2021).
357:environment within
149:b = 20.421 Å,
147:a = 15.351 Å,
656:Hydroxide minerals
651:Carbonate minerals
631:Strontium minerals
365:bodies containing
252:Optical properties
120:Dipyramidal (mmm)
641:Chromium minerals
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337:Western Australia
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646:Sulfate minerals
636:Calcium minerals
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367:sulfide minerals
261:Refractive index
243:Specific gravity
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194:Brittle – uneven
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56:(repeating unit)
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333:Shire of Dundas
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125:: (2/m 2/m 2/m)
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500:(1): 131–144.
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156:Identification
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104:Crystal system
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671:Mineral stubs
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273:= 1.583 and n
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170:Crystal habit
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116:Crystal class
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586:expanding it
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544:. Retrieved
517:. Retrieved
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458:. Retrieved
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184:, and good
135:
109:Orthorhombic
489:"Putnisite"
348:pleochroism
283:Pleochroism
255:Biaxial (−)
237:Translucent
233:Diaphaneity
131:Space group
625:Categories
578:mineraloid
546:2014-04-29
373:References
292:References
269:= 1.552, n
200:Mohs scale
123:H-M symbol
94:IMA symbol
514:102242056
422:235729616
359:komatiite
355:oxidation
305:strontium
301:Putnisite
143:Unit cell
19:Putnisite
519:26 April
460:26 April
363:dioritic
329:hydrogen
313:chromium
217:Vitreous
203:hardness
190:Fracture
180:Cleavage
41:Category
574:mineral
400:Bibcode
309:calcium
277:= 1.599
52:Formula
45:Mineral
36:General
512:
420:
325:oxygen
321:carbon
317:sulfur
223:Streak
213:Luster
164:Purple
580:is a
510:S2CID
418:S2CID
207:1.5–2
161:Color
84:·25 H
80:)(OH)
582:stub
521:2014
462:2014
327:and
247:2.20
227:Pink
136:Pnma
60:SrCa
576:or
502:doi
408:doi
361:to
341:IMA
98:Pni
76:(SO
68:(CO
627::
529:^
508:.
498:78
496:.
492:.
470:^
441:^
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396:85
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369:.
335:,
323:,
319:,
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311:,
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82:16
64:Cr
613:e
606:t
599:v
588:.
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424:.
410::
402::
275:γ
271:β
267:α
265:n
88:O
86:2
78:4
74:8
72:)
70:3
66:8
62:4
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