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Pearceite-T2ac Native Silver & Stellerite

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SCH55787

Pearceite-T2ac Native Silver & Stellerite

Description Tabs

Description
Locality: 
Sarbai Deposit, Rudny, Kostanay Region, Kazakhstan
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.7 × 1.2 cm
Description

Black metallic crystals of rare pearceite-2ac set on a sulphide matrix with possibly other species and with bright wires of native silver and minor stellerite

Mineral Data
What's on the rock

Pearceite-T2ac

Polytype Of: 

Pearceite

Formula: 
[(Ag,Cu)6(As,Sb)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Hardness: 
2.5 - 3.0

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Stellerite

Formula: 
Ca4(Si28Al8)O72·28H2O
Strunz: 
9.GE.15
Hardness: 
4.5
Type Locality: 
Mednyi Island, Commander Islands (Komandorskije ostrova), Bering Sea, Kamchatka Oblast', Far-Eastern Region, Russia...
schani

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