DURABILITY OF GEMS MATERIALS
- DURABILITY is combination of three parameters.
- HARDNESS: Resistance to Scratching
- TOUGHNESS: Resistance to Breaking
- STABILITY : Resistance to Chemicals, Heat , Humidity and light
- GEMS STONE DURABILITY
- Jade Is The Toughnest Stone
- Gems Which Are Found In Sand And Gravel Are Durable.
- Because They Have Been Exposed To Weathering And Abrasion During Transporation
- Such Stones Are Mostly Rounded e.g QUARTZ , TOPAZ, CORUNDUM, SPINAL, CHRYSOBERYL, DIAMOND and GARNET
