Aguilarite
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Aguilarite is an uncommon sulfosalt mineral with formula Ag4SeS. It was described in 1891 and named for discoverer Ponciano Aguilar.
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Aguilarite | |
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General | |
Category | Sulfosalt minerals |
Formula (repeating unit) | Ag4SeS |
IMA symbol | Agu[1] |
Strunz classification | 2.BA.55 |
Dana classification | 2.4.1.3 |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) (same H-M symbol)[2] |
Space group | P21/n[2] |
Unit cell | a = 4.2478(2), b =6.9432(3) c = 8.0042(5) [Å] β = 100.103(2)° Z = 4[2] |
Identification | |
Color | Bright lead-gray on fresh surfaces; dull iron-black on exposure to air. |
Cleavage | None observed |
Fracture | Hackly |
Tenacity | Sectile |
Mohs scale hardness | 2.5[3] 1–1.5[2] |
Luster | Metallic |
Streak | Gray-black |
Diaphaneity | Opaque |
Ultraviolet fluorescence | Non-fluorescent[4] |
References | [3] |
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