External Observation
Rough:-
- Horizontal Striations
- Vertical Striations
- Trigons Striations
- Etch Pits
- Pits
- Terrace Like Mark
- Cavity
- Material Emeded in cavity
- Facture
Cut & Polish
- Scratch
- Polishig Lines
- Abraded facet Edges
- Chipping
- Cleavage
- Facture
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DURABILITY OF GEMS MATERIALS DURABILITY is combination of three parameters. HARDNESS: Resistance to Scratching TOUGHNESS: ... -
Unit Of Weight * Gems Are Mearured In Carat * It Is Denoted By (CT) The Name Of Carat Is Derived By Carob Three. Each Can't Is Sp...
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