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Adamite & Calcite

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PFK737776

Adamite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 1.7 × 1.7 cm
Largest Crystal: 
1.30cm
Description

Pinwheels of greenish, lustrous, translucent adamite on cute little scalenohedral calcite crystals, associated with cute little crystal groups of white calcite that is sitting atop of the adamite. Some of the pinwheels are interrupted by a black oxide, an interesting and unusual occasion. There is a damaged pinwheel but regardless of that, this is a fine and unusual Greek adamite specimen. The largest pinwheel measures 1.3cm in diameter!

Mineral Data
What's on the rock

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

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