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Prehnite On Calcite

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TBM815975

Prehnite On Calcite

Description Tabs

Description
Locality: 
Goboboseb Mountains, Brandberg, Dâures, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6 × 4.4 cm
Weight: 
177.00gr
Description

Crystals collected in sheaves of a pale green yellow color of a diameter of 16 mm

Mineral Data
What's on the rock

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

Calcite

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

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