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Chalcedony Psm Calcite

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AST749672

Chalcedony Psm Calcite

Pseudomorph

Description Tabs

Description
Locality: 
Lesbos Island, North Aegean, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 6.5 × 3 cm
Description

A fine and rare pseudomorph of chalcedony after scalenoedral calcite crystals on volcanic rock matrix.Chalcedony shows plesant gray-bluish color and specimen has very nice display all around. 

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey

Calcite

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

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