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Kyanite

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BMM1029427

Kyanite

Description Tabs

Description
Locality: 
São José da Safira, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Museum (18cm plus)
Size: 
19.7 × 2 × 0.5 cm
Description

Huge single crystal of kyanite from Brazil. It shows a fine gloss and exhibits an electric blue color. This piece comes from an old collection. The old collection label is included.

Mineral Data
What's on the rock

Kyanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.15
Crystal System: 
Triclinic Forms long bladed crystals.
Hardness: 
5.5 - 7.0
Streak: 
Colorless