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Heliotrope and Selenite Physical Properties


Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
-9999  
2.61  

Fracture
-  
-  

Cleavage
Perfect  
None  

Mohs Hardness
2  
6.5-7  

Chemical Composition
CaSO4·2H2O  
SiO2  

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