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Calcite & Celadonite

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MGR979907

Calcite & Celadonite

Classic Locality

Description Tabs

Description
Locality: 
Iraí, Rio Grande do Sul, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 6.5 × 3.8 cm
Description

Fine example from Brazil of a nicely crystallised rosette of celadonite as a base for several well arranged crystals of calcite. There is a perfect calcite cluster in the center of the specimen which is surrounded by several more crystals around. The appearence is really beautiful and esthetic.

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