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Riebeckite Var Crocidolite

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CLB543581

Riebeckite Var Crocidolite

ex collection Uwe Nielsen
Classic Locality

Description Tabs

Description
Locality: 
Zimbabwe
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 6.1 × 4.1 cm
Description

Very good sample of riebeckite - variety crocidolite or 'blue asbestos'. From a time when zimbabwe was still called 'South Rhodesia' (before 1965).

Mineral Data
What's on the rock

Riebeckite

Formula: 
◻[Na2][Fe2+3Fe3+2]Si8O22(
Strunz: 
9.DE.25
Hardness: 
5.0 - 5.5
Type Locality: 
Socotra Island, Adan Governorate, Yemen

Crocidolite

Variety Of: 

Riebeckite Root Name

Formula: 
◻[Na2][Z2+3Fe3+2]Si8O22(OH,F,Cl)2
Hardness: 
0.0
Hardness: 
0.0

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