Red Spinel - 1,34 cts

Stone type:  Spinel 
Weight: 1,34 cts
Dimension: 6.65x6.07x4.50 mm
Color: Red
Origin: Not known
Shape & Cut: Cushion

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: MgAl₂O₄
Shipment from: France

Certificate : Yes GFCO
 
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