metamorphic
Ruby in Zoisite (Anyolite)
Ruby (Al2O3) in Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))
AI-generated identification · may be incorrectHardness of 6.5 to 9 on the Mohs scale, vibrant pink-to-red crystal inclusions embedded in a green and black zoisite-hornblende matrix with a vitreous to dull luster.
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Physical properties
Hardness of 6.5 to 9 on the Mohs scale, vibrant pink-to-red crystal inclusions embedded in a green and black zoisite-hornblende matrix with a vitreous to dull luster.
Formation & geological history
Formed through metamorphic processes involving intense heat and pressure when corundum-rich rocks interact with amphibolites, typically dating back billions of years.
Uses & applications
Widely used for ornamental carvings, polished decorative objects, and lapidary gemstone jewelry.
Geological facts
First discovered in the Longido mining district of Tanzania in 1954, it is frequently carved into intricate animal figurines.
Field identification & locations
Easily identified by the striking color contrast of vivid pink ruby patches against an opaque green zoisite background.
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