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Prehnite & Aegirine

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SHS788856

Prehnite & Aegirine

Description Tabs

Description
Locality: 
Sandaré, Arrondissement Sandaré, Cercle de Nioro du Sahel, Kayes Region, Mali
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 8.5 × 7 cm
Description

Nice green prehnite with aegirine in matrix
 

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

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway