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Alumino Adamite & Calcite

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PFK616843

Alumino Adamite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Hilarion Mine, Hilarion, Kamariza, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
17.4 × 8.4 × 6.6 cm
Description

Very large for the locality and good example of blue adamite with calcite on marble. I was told that this is alumino-adamite but I have not analyzed it so please do not bid for the possible Al-content but for the fine unusual color of the adamite. Note the shipping charges before bidding as this is a large and heavy specimen.

Mineral Data
What's on the rock

Alumino Adamite

Variety Of: 

Adamite

Formula: 
Zn2(AsO4)(OH)
Strunz: 
8.BB.30
Hardness: 
3.5
Formula: 
(Zn,Al)2AsO4(OH)
Hardness: 
0.0

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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