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Cobalt

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GFM735718

Cobalt

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Description
Locality: 
Luc Yen Mine, Lục Yên District, Yên Bái Province, Vietnam
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.1 × 1.2 cm
Description

cobalt-blue gemmy crystals to 5 mm intergrown in crystal clusters to 1,5 cm. Intensive cobalt-blue Spinels are highly sought gemstones, previously known mainly from Sri Lanka and the Pamir Mountains

Mineral Data
What's on the rock