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SAPPHIRE MINERAL                NATURAL COLOR             Hardness 9
 

 
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 176 gr.blue Sapphire crystal on limestone matrix single.65 x 55 mm. 

Single crystal: 41.5 x 30.5 mm. Enhancement: none (N) 

ORIGIN: Maromby, Madagascar 

 USD 178  .00   ref: SAbr176g  

Hardness: 9
Specific Gravity: 3.9 - 4.1
Refractive Index: 1.76 - 1.78     Corundum data
Chemical Composition: Al2O3, Aluminum Oxide      Ask a question
Crystal Structure: Trigonal Andranondambo
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