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Xanthiosite & Aerugite

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BCK512241

Xanthiosite & Aerugite

Type Locality

Description Tabs

Description
Locality: 
Johanngeorgenstadt, Erzgebirge, Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.4 × 0.2 cm
Description

You are bidding on a small specimen consisting of extremely rare, bright green xanthiosite having formed directly on darker green aerugite. This is the type locality for both species and they were only known from one original specimen. This is material from the AMNH collection and from the original find. Nearly impossible to obtain!

Mineral Data
What's on the rock

Xanthiosite

Formula: 
Ni3(AsO4)2
Strunz: 
8.AB.25
Crystal System: 
Monoclinic
Hardness: 
4.0 - 0.0
Type Locality: 
Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

Aerugite

Formula: 
Ni8.5(AsO4)2As5+O8
Strunz: 
8.BC.15
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

Seller Information

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