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Fluorescent vermillion Corundum var ruby (Al2O3) in schist matrix under long frequency UV light. Fro

Fluorescent vermillion Corundum var ruby (Al2O3) in schist matrix under long frequency UV light. From Mysore corundum deposits, Karnataka, India


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Multiple green transparent tourmaline (var Elbaite) in matrix. From Paprok, Kamdesh District, NuristMultiple green transparent tourmaline (var Elbaite) in matrix. From Paprok, Kamdesh District, Nurist

Multiple green transparent tourmaline (var Elbaite) in matrix. From Paprok, Kamdesh District, Nuristan, Afghanistan


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