metamorphic
Ruby in Zoisite
Anyolite (Ruby-Zoisite)
AI-generated identification · may be incorrectHardness varies due to components: Ruby is 9 on the Mohs scale, Zoisite is 6.5-7. Color is a striking combination of green (zoisite) and pink to red (ruby), often with black hornblende inclusions. Luster is vitreous to pearly. Crystal structure is orthorhombic for zoisite and trigonal for ruby.
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Physical properties
Hardness varies due to components: Ruby is 9 on the Mohs scale, Zoisite is 6.5-7. Color is a striking combination of green (zoisite) and pink to red (ruby), often with black hornblende inclusions. Luster is vitreous to pearly. Crystal structure is orthorhombic for zoisite and trigonal for ruby.
Formation & geological history
Formed through metamorphic processes, typically in amphibolite facies where calcium-rich rocks interact with aluminum-rich hydrothermal fluids under high pressure and temperature.
Uses & applications
Used primarily as an ornamental stone, for carvings, and in high-end jewelry as cabochons or polished specimens for collectors.
Geological facts
Also known as Anyolite, this rock was first discovered in the Longido mining district of northeast Tanzania in 1954.
Field identification & locations
Easily identified in the field by its distinct contrasting red and green coloration. Found predominantly in Tanzania and Kenya.
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