metamorphic
Ruby in Zoisite
Anyolite (Al2O3:Cr + Ca2Al3(SiO4)3(OH))
AI-generated identification · may be incorrectHardness of 6.5-9 on Mohs scale, vibrant pinkish-red ruby crystals embedded in green zoisite matrix with black hornblende flecks, vitreous to pearly luster.
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Physical properties
Hardness of 6.5-9 on Mohs scale, vibrant pinkish-red ruby crystals embedded in green zoisite matrix with black hornblende flecks, vitreous to pearly luster.
Formation & geological history
Formed through intense regional metamorphism where hydrothermal fluids interacted with aluminum-rich and calcium-rich rocks under high pressure and temperature.
Uses & applications
Widely used for ornamental carvings, decorative objects, tumbled stones, and cabochons in jewelry.
Geological facts
First discovered in 1954 in the Longido mining district of Tanzania, the stone is often referred to commercially as Anyolite.
Field identification & locations
Easily identified by the striking color contrast between the pink-red ruby and green zoisite; commonly sourced from Tanzania and India.
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