Lagoon Blue Tourmaline 21.32 cts / 2 pcs
171068-69Product Details
Stone type:  Tourmaline no heat 
Weight: 21.32 cts / 2 pcs
Dimension:13.76 x 11.12 x 9.28 mm 13.70 x 11.13 x 7.98 mm 
Color: Blue, Green  
Shape & Cut: Cushion, Yavorskyy cut
***Tourmaline displays an exciting pleochroism, with diverse colors seen when the stone is viewed from different angles -œ likein a kaleidoscope -œ so the cutter must take great care while faceting to get the best color results.*** 
(Extract from the book "Gemstones" by Vladyslav Yavorskyy)
Treatment: Unheated and Untreated (No Indications Observed)
Refractive Index: 1.618-1.643 
Hardness: 7-7.5
Specific Gravity: 3.1
Optical properties: Doubly refractive 
Chemical formula: Complex Boron Silicate 
Shipment from: Thailand 
Return Policy: 3 Day Money-Back Return*
 
      
    
     
           
           
           
       
       
       
       
       
      
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