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Kyanite

#48483

Kyanite

#48483
Availability
Sold
Size
7 x 3.5 x 3 cm - Sm Cabinet 
Formula
Al2OSiO4 (RRUFF)
Locality
Araçuaí, Minas Gerais, Brazil

Deep blue, banded Kyanite crystals. A plate at the base measures 6.5cm and the top crystal measures 3cm. The matrix is Quartz.

Kyanite

Formula
Al2OSiO4 
Crystal System
Triclinic 
Crystal Habit
Columnar, Fibrous 
Cleavage
Perfect, Imperfect, None 
Luster
Vitreous - Pearly 
Color
blue, white, gray, green, black 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle 
Hardness
4-7 

Data courtesy of Webmineral.

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