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Arsenocrandallite Conichalcite & Olivenite

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PFK784952

Arsenocrandallite Conichalcite & Olivenite

Classic Locality

Description Tabs

Description
Locality: 
Christiana Mine, Kamariza, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.7 × 9.1 × 5.2 cm
Description

The piece comes from a pocket of 2012 in Shaft 132 of the Christiana mine. We had some nice but amorphous, pale blue arsenocrandallite. This is one of the richest and best examples that I have seen. the arsenocrandallite has some form, forming little spheres on several areas! It is associated with contrasting green conichalcite and darker green crystals of olivenite. Excellent, rare and large combo specimen with beautiful colors!

Mineral Data
What's on the rock

Arsenocrandallite

Formula: 
CaAl3(AsO4)2(OH)5·H2O
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
5.5
Streak: 
white
Type Locality: 
Neubulach, Calw, Black Forest, Baden-Württemberg, Germany

Conichalcite

Formula: 
CaCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Hinojosa del Duque, Córdoba, Andalusia, Spain

Olivenite

Formula: 
Cu2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.0
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

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