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Euclase

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PDM641294

Euclase

Description Tabs

Description
Locality: 
Alto do Giz Pegmatite, Equador, Borborema Province, Rio Grande do Norte, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.7 × 1.5 cm
Largest Crystal: 
0.70cm
Description

Aggregate of well-formed euclase crystal from the famous Alto do Giz pegmatite, with good lustre and striated along [100]. Crystals reach 7 mm in side and show the characteristic blue "stripe" inside along the central area. In very good condition.

Acquired in 1997-99. Ex. Werner Heirman (BE).

Mineral Data
What's on the rock

Euclase

Formula: 
BeAl(SiO4)(OH)
Strunz: 
9.AE.10
Hardness: 
7.5
Streak: 
White
Type Locality: 
Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil

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