Rock Identifier
Pink Sapphire (Corundum (Al2O3)) — gemstone
gemstone

Pink Sapphire

Corundum (Al2O3)

AI-generated identification · may be incorrect

Hardness of 9 on the Mohs scale, vibrant pink color, vitreous to adamantine luster, trigonal crystal system, and no cleavage with conchoidal fracture.

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Physical properties

Hardness of 9 on the Mohs scale, vibrant pink color, vitreous to adamantine luster, trigonal crystal system, and no cleavage with conchoidal fracture.

Formation & geological history

Formed in metamorphic or igneous rocks, specifically aluminum-rich and silica-poor environments like marble and syenite, over millions of years.

Uses & applications

Primarily used in high-end fine jewelry, watch components, and industrial bearings.

Geological facts

Sapphires belong to the corundum mineral species, and any corundum that is not red (which is a ruby) is classified as a sapphire.

Field identification & locations

Identified by its extreme hardness, high density, and distinctive pink hue. Commonly mined in Sri Lanka, Madagascar, and East Africa.