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Jarosite Adamite & Calcite

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RHT642526

Jarosite Adamite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6 × 1.8 cm
Weight: 
74.00gr
Description

Very good specimen with two interesting sides. One full of glossy, brown jarosite crystals and an unidentified black mineral. The other side is a coating of bigger adamite and colorless calcite crystals (with unidentified green and blueish inclusions) on jarosite. Something to explore further ...

Mineral Data
What's on the rock

Jarosite

Formula: 
KFe3+ 3(SO4)2(OH)6
Strunz: 
7.BC.10
Crystal System: 
Trigonal - Pyramidal Class
Hardness: 
2.5 - 3.5
Type Locality: 
Jaroso Ravine, Sierra Almagrera, Cuevas del Almanzora (Cuevas de Vera), Almería, Andalusia, Spain

Adamite

Formula: 
Zn2(AsO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
white
Type Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Not Sold