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Calcite & Celadonite On Quartz

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CLB506648

Calcite & Celadonite On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Iraí, Rio Grande do Sul, Brazil
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
15.65 × 12.1 × 6.8 cm
Description

More than a hundred calcite dog tooth crystals - several double-terminated - on a crust of brown celadonite, covering quartz crystals.

An outstanding, very showy specimen

Mineral Data
What's on the rock

Calcite

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

Celadonite

Formula: 
K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.0
Type Locality: 
Planitz, Zwickau, Saxony, Germany

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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