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White sapphire – a gemstone from Sri Lanka
White sapphire – a gemstone from Sri Lanka | Minerals-stones

White sapphire – a gemstone from Sri Lanka

White sapphire – a colorless variety of corundum
White sapphire, also known as leucosapphire, is a colorless variety of the mineral corundum (Al₂O₃). Due to its purity and high luster, it is often compared to diamond and in some cases even replaces it in jewelry. Like other sapphires, it is characterized by extraordinary hardness – 9 on the Mohs scale.

Sri Lanka – the source of the highest quality white sapphires
Sri Lanka, historically known as Ceylon, is one of the most important sources of white sapphires. The stones here are distinguished by their purity, high luster and transparency, which makes them sought-after gems on the international market.

History and uses of white sapphire
White sapphires have been valued since ancient times. In modern times, they have become a popular alternative to diamonds – both in jewelry and among mineral collectors. Their price depends mainly on transparency, purity and quality of cut.

White sapphire identification

Chemical formula: Al₂O₃

Color: colorless, transparent

Crystal appearance: prismatic, hexagonal

Crystal system: hexagonal

Hardness: 9 (Mohs scale)

Luster: vitreous to diamond

Cleavage: none

Scratch: white

Density: 3.9 – 4.1 g/cm³

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