ENHANCEMENT CODE H
Click to view AGTA
code.
PROPERTIES
Refractive Index 1.577-1.583
Hardness = 7.5-8 (Moh's Scale)
Specific Gravity =2.72
Species - Beryl
Optic Character -
Double Refraction.
Phenomena - Chatoyancy (Rare).
WARNINGS FOR CARE
Ultrasonic: Usually safe.
Steamer: Usually safe.
Heat: Poor; color change may occur
with heat.
Chemicals that harm: Hydrofluoric acid. |
Crystal Structure

Crystal system: Hexagonal (trigonal), long prisms.
MAJOR SOURCES
South America, Africa, China.
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