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Optical properties: Doubly refractive
Optical properties: Singly refractive
But unlike ruby
Weight: 5
Chemical formula: Complex Boron Silicate
Spinel 1.01 ct G5 Optical properties: Doubly refractiveStone type: Spinel Weight: 1. 01 ct Dimension: 7. 01 x 5. 17 x 3. 95 mm Shape & Cut: Oval, Yavorskyy cut Treatment: Unheated and Untreated (No Indications Observed) Refractive Index: 1. 712 1. 782 Hardness: 7. 5 8 Specific Gravity: 3. 6 Optical properties: Singly refractive Chemical formula: MgAlO Shipment from: Thailand Return Policy: 3 Day Money Back Return*
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