gemstone
Yellow Sapphire
Corundum (Al2O3)
AI-generated identification · may be incorrectHardness of 9 on the Mohs scale. Yellow color caused by trace iron impurities. Vitreous luster and trigonal crystal system with no true cleavage.
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Physical properties
Hardness of 9 on the Mohs scale. Yellow color caused by trace iron impurities. Vitreous luster and trigonal crystal system with no true cleavage.
Formation & geological history
Formed in metamorphic or igneous rock environments, such as marble or basalt, through high-pressure and high-temperature crystallization over millions of years.
Uses & applications
Extensively used in high-end jewelry and industrial applications due to its extreme durability.
Geological facts
Sapphire is the second hardest natural mineral on Earth, surpassed only by diamond. Yellow varieties are sometimes known as Pukhraj in Vedic astrology.
Field identification & locations
Identified by its high density, extreme scratch resistance, and characteristic hexagonal crystal habit. Commonly sourced from Sri Lanka, Madagascar, and Australia.
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