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Riebeckite Var Crocidolite

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PDM591105

Riebeckite Var Crocidolite

Description Tabs

Description
Locality: 
Pomfret Mine, Segomotsi Mompati District, North West Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 3.2 × 2.5 cm
Description

Blue fibrous crystals of riebeckite, variety crocidolite, in a quartz matrix.

Ex. Gabriel Fauvart Collection.

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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