Lot of 3 Sapphires raw

Product Description

The Sapphire is a variety Corindon which holds its name of the Greek «sappheirosthat means "blue color stone" It is composed ofaluminum oxideand dimpurities (Oxides) that determine its color. The shades vary from blue to purple to green, orange yellow, purple or pink. The crystals are sometimes colorless. Some sapphires are heated to improve their color (traditional heating or diffusion treatment).

Sapphire is found everywhere on the planet: Madagascar, Myanmar, Sri Lanka, Australia, Kashmir, Cambodia, China, Colombia, Kenya, United States, Nigeria, Thailand, Tanzania, Vietnam, Laos, Cambodia..

• Hardness scale of MOHS 9
• Chemical formula : Al2O3
• Eclat : vitreux