Kyanite Minerals
Name and Composition - Aluminum silicate: Al2SiO5.
Physical Properties - Occurs as light blue, sometimes white coloured long and thin bladed crystals; hardness : 5.5-7.0 and sp. gr. 3.58-3.65.
Mode of Occurrence - Occurs at the contacts of regionally metamorphosed rocks resulting from thermal metamorphism of pelitic rocks.
Uses - In refractory and ceramic industries.
Mineral based Industries – There is no mineral based industry in the state.
Industrial Prospects – Nil, as there is no production of kyanite.
Physical Properties
Hardness
Sp. gr.
Luster
Fracture
Streak
Sp. gr.
Luster
Fracture
Streak
4.5 - 7
3.53 - 3.65
Vitreous to pearly
Splintery
White, colorless
3.53 - 3.65
Vitreous to pearly
Splintery
White, colorless
Chemical Properties
Chemical Composition
Crystal System
Diaphaneity
Crystal System
Diaphaneity
Al2SiO5
Triclinic
Transparent to translucent
Triclinic
Transparent to translucent
Indian Minerals
Metallic Minerals
Cadmium Ore
Copper Ore
Lead Ore
Zinc Ore
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Limestone and Dolomite
Limestone
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Gypsum
Pyrite
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Lignite
Glass and Ceramic Minerals
Ball Clay
China Clay
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Fire Clay
Kyanite
Quartz
Quartzite
Silica Sand
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