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Adamite & Calcite

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PFK607326

Adamite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.1 × 2.7 cm
Description

Superb crystals of adamite for Greece on contrasting white calcite. The crystal size and form are really great for Lavrion. We usually see tiny, spherical crystals that are only clearly seen under magnification but on this specimen, the crystals are large, thick and gemmy, well terminated with good luster!

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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