gemstone
Ruby
Corundum (Al2O3)
AI-generated identification · may be incorrectHardness of 9 on the Mohs scale, red color due to chromium impurities, adamantine to vitreous luster, trigonal crystal system, and lack of cleavage.
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Physical properties
Hardness of 9 on the Mohs scale, red color due to chromium impurities, adamantine to vitreous luster, trigonal crystal system, and lack of cleavage.
Formation & geological history
Formed in metamorphic and igneous rocks, specifically marbles and aluminum-rich rocks subjected to high temperatures and pressures over millions of years.
Uses & applications
Used primarily in high-end jewelry, luxury watches, and historically in early laser technology.
Geological facts
Ruby is one of the traditional cardinal gemstones and derives its name from 'ruber', Latin for red.
Field identification & locations
Identified by its distinct red hue, high hardness, and specific gravity; commonly sourced from Myanmar, Thailand, and East Africa.
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