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Xanthiosite & Rooseveltite

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JYJ598238

Xanthiosite & Rooseveltite

Description Tabs

Description
Locality: 
Johanngeorgenstadt, Erzgebirge, Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.2 × 0.15 × 0.1 cm
Description

Very rare xanthiosite type material from 1850. 

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

Rooseveltite

Formula: 
Bi(AsO4)
Strunz: 
8.AD.50
Hardness: 
4.0 - 4.5
Type Locality: 
Santiaguillo, Macha area, Chayanta Province, Potosí Department, Bolivia