Natural Indian Minerals
Emerald Minerals

Name and Composition - It is a green/pale green variety of beryl: Be3AI2 Si6O18 (alumino – silicate of beryllium).

Physical Properties - Pale green to deep coloured, transparent to transcluent, hexagonal crystals having vitreous to resinous lusture. Hardness is 7.5-8.

Mode of Occurrence - It occurs in beryl bearing pegmatites and also found dispersed in mica schist associated with such pegmatites.

Uses - Mainly used as gem stone in jewelary.

Mineral based Industries – Cutting and polishing/processing units.

Industrial Prospects – A large number of cutting and polishing units based on imported crude emerald. Still there is ample scope to establish more cottage industries.


Physical Properties
Hardness
Sp. gr.
Luster
Diaphaneity
7.5-8
Average 2.76
Vitreous
Transparent to opaque
Chemical Properties
Formula
Fracture
Formula mass
Crystal system
Be3AI2 Si6O18
Conchoidal
537.50
Hexagonal
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