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Calcite On Chalcedony

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PCZ183303

Calcite On Chalcedony

Description Tabs

Description
Locality: 
Slanec Quarry, Košice County, Košice Region, Slovakia (Slovak Republic)
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.8 × 1.3 cm
Description

This is a fantastic specimen, from a rarely offered locality, with numerous lemon/yellow calcite crystals contrasting beautifully with a pale blue chalcedony layer covering minor matrix.

Mineral Data
What's on the rock

Calcite

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

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
Peter Crozier Minerals