sperrylite
Sign in to savethumb|Sperrylite on chalcopyrite with [[magnetite, Oktyabersky Mine, Norilsk. Field of view 2.2 cm.]] Sperrylite is a platinum arsenide mineral with the chemical formula and is an opaque metallic tin white mineral which crystallizes in the isometric system with the pyrite group structure. It forms cubic, octahedral or pyritohedral crystals in addition to massive and reniform habits. It has a Mohs hardness of 6–7 and a very high specific gravity of 10.6.
Key facts
- Mineral.name
- Sperrylite
- Mineral.category
- Arsenide mineral Pyrite group
- Mineral.image
- Sperrylite-195702.jpg
- Mineral.imagesize
- 260px
- Mineral.IMAsymbol
- Spy
- Mineral.strunz
- 2.EB.05a
- Mineral.system
- Isometric
- Mineral.class
- Diploidal (m) H-M symbol: (2/m )
- Mineral.symmetry
- Pa3
- Mineral.unit cell
- a = 5.967 Å, Z = 4
- Mineral.color
- Tin white
- Mineral.habit
- Well-formed finely crystalline, massive to reniform
- Mineral.cleavage
- Indistinct on {001}
- Mineral.fracture
- Conchoidal
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 6–7
- Mineral.luster
- Metallic
- Mineral.streak
- Black
via Wikipedia infobox
Wikidata facts
- Image
- Sperrylite-195702.jpg
Show 7 more facts
- Strunz 8th edition (series ID, updated)
- II/C.05
- IMA Mineral Symbol
- Spy
- Commons category
- Sperrylite
- chemical formula
- PtAs₂
- Nickel-Strunz 9th edition (updated 2009)
- 2.EB.05a
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.EB.05a
- 2022 Harmonized System Code
- 261690
Sources (1)
via Wikidata · CC0
~6 min read
Article
6 sectionsContents
- Geologic occurrence
- Structure
- Physical properties
- Discovery
- See also
- References
{{Infobox mineral | name = Sperrylite | category = Arsenide mineral Pyrite group | boxwidth = | image = Sperrylite-195702.jpg | imagesize = 260px | caption = | formula = | IMAsymbol = Spy | strunz = 2.EB.05a | system = Isometric | class = Diploidal (m) H-M symbol: (2/m ) | symmetry = Pa3 | unit cell = a = 5.967 Å, Z = 4 | color = Tin white | habit = Well-formed finely crystalline, massive to reniform | cleavage = Indistinct on {001} | fracture = Conchoidal | tenacity = Brittle | mohs = 6–7 | luster = Metallic | refractive = | pleochroism = | streak = Black | gravity = 10.58 | melt = | solubility = | references = }}
thumb|Sperrylite on chalcopyrite with [[magnetite, Oktyabersky Mine, Norilsk. Field of view 2.2 cm.]] Sperrylite is a platinum arsenide mineral with the chemical formula and is an opaque metallic tin white mineral which crystallizes in the isometric system with the pyrite group structure. It forms cubic, octahedral or pyritohedral crystals in addition to massive and reniform habits. It has a Mohs hardness of 6–7 and a very high specific gravity of 10.6.