argentopyrite
Sign in to saveArgentopyrite is a moderately rare sulfide mineral with the chemical formula . It is one of the natural compounds of the type, with M being caesium in very rare pautovite, copper in relatively common cubanite, potassium in rare rasvumite and thallium in rare picotpaulite. The type locality is Jáchymov in Czech Republic. Chemically similar mineral include sternbergite (dimorphous with argentopyrite), lenaite, , and argentopentlandite, .
Key facts
- Mineral.name
- Argentopyrite
- Mineral.category
- Sulfide mineral
- Mineral.image
- Argentopyrite - Schneeberg, Erzgebirge, Saxony, Germany.jpg
- Mineral.caption
- Argentopyrite (from Schneeberg, Erzgebirge, Saxony, Germany)
- Mineral.IMAsymbol
- Agpy
- Mineral.strunz
- 2.CB.65
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- P1121/n
- Mineral.color
- Bronze-brown or gray-white; iridescent (many colors)
- Mineral.habit
- Tabular prisms, pseudohexagonal or pseudo-orthorhombic, possibly pyramidally-terminated
- Mineral.fracture
- Uneven
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 3.5-4
- Mineral.luster
- Metallic
- Mineral.streak
- Grey
- Mineral.diaphaneity
- Opaque
- Mineral.density
- 4.25-4.27
via Wikipedia infobox
Wikidata facts
- Image
- Argentopyrite - Schneeberg, Erzgebirge, Saxony, Germany.jpg
Show 6 more facts
- IMA Mineral Symbol
- Agpy
- Strunz 8th edition (series ID, updated)
- II/B.08
- Commons category
- Argentopyrite
- chemical formula
- AgFe₂S₃
- Nickel-Strunz 9th edition (updated 2009)
- 2.CB.65
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.CB.65
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Article
2 sectionsContents
- Crystal structure
- References
Argentopyrite is a moderately rare sulfide mineral with the chemical formula . It is one of the natural compounds of the type, with M being caesium in very rare pautovite, copper in relatively common cubanite, potassium in rare rasvumite and thallium in rare picotpaulite. The type locality is Jáchymov in Czech Republic. Chemically similar mineral include sternbergite (dimorphous with argentopyrite), lenaite, , and argentopentlandite, .
==Crystal structure== Although previously assumed orthorhombic, argentopyrite was later shown to be monoclinic, with structural relationship to cubanite. The most important feature of the argentopyrite structure are: hexagonal close-packing of sulfur atoms presence of and tetrahedra in sheets displaying corner-sharing presence of a cluster of four tetrahedra that share edges presence of two iron sites, instead of one as in related species ordered-disordered ferrous-ferric nature of the mineral