gemstone
Blue Sapphire
Corundum (Al2O3)
AI-generated identification · may be incorrectHardness of 9 on the Mohs scale, vibrant blue color due to iron and titanium impurities, adamantine to vitreous luster, and trigonal crystal system.
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Physical properties
Hardness of 9 on the Mohs scale, vibrant blue color due to iron and titanium impurities, adamantine to vitreous luster, and trigonal crystal system.
Formation & geological history
Formed in metamorphic or igneous rocks under high temperature and pressure conditions, often found in alluvial gravel deposits in Sri Lanka.
Uses & applications
Primarily used in high-end fine jewelry, industrial bearings, and watch crystal components.
Geological facts
Sri Lanka is world-renowned for producing some of the finest natural blue sapphires throughout history, matching the user's origin note.
Field identification & locations
Identify by its exceptional hardness, high specific gravity, and distinctive blue hue; verifying authenticity requires professional gemological testing for natural inclusions.
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