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Euclase

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PDM631388

Euclase

Gem Crystal

Description Tabs

Description
Locality: 
Alto do Giz Pegmatite, Equador, Borborema Province, Rio Grande do Norte, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.5 × 0.4 cm
Description

Well-formed, doubly-terminated crystal of euclase from the famous Alto do Giz pegmatite, with good lustre and striated along [100]. In perfect condition, no chippings, just with the attachment point to the matrix at the rear side. It has the characteristic blue "stripe" inside along the central area of the crystal. 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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