Lot of 3 rough sapphires
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Lot of 3 natural rough sapphires. Collectable stones from Sri Lanka.
Origin : Sri Lanka
Shape : Natural
Dimensions : 12-13 mm
Weight : 1.43 g
Sapphire is a variety of corundum which takes its name from the Greek " sappheiros " which means " blue colored stone ". It is composed ofaluminum oxide andimpurities(oxides) that determine its color. The shades vary from blue to mauve, passing by green, yellow-orange, purple or pink. Crystals are sometimes colorless. Some sapphires are heated to improve their color(traditional heating or diffusion treatment).
Sapphire is found all over the world: Madagascar, Myanmar, Sri Lanka, Australia, Kashmir, Cambodia, China, Colombia, Kenya, United States, Nigeria, Thailand, Tanzania, Vietnam, Laos, Cambodia.
- Hardness MOHS scale: 9
- Chemical Formula: Al2O3
- Luster: Vitreous
Data sheet
- Provenance
- Sri Lanka
- Form
- Natural
- Treatment
- None
- Dimensions
- 12-13 mm
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