GEMOLOGIST can Identify cleavage in rough and even cut stone hence in helps in the identification of the stone
To Lapidary
CLEAVAGE is Quicker than sawing hardness direction can be find in DIAMOND
due to cleavage
CONCHOIDAL FRACTURE
Citrin Quartz
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DURABILITY OF GEMS MATERIALS DURABILITY is combination of three parameters. HARDNESS: Resistance to Scratching TOUGHNESS: ...
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