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Tinaksite and Opal Physical Properties


Physical Properties

Tenacity
BrittleWalter Schumann  
-  

Solubility
hot salt water  
-  

Durability
-  
-  

Specific Gravity
1.98-2.25  
2.82  

Fracture
Conchoidal  
-  

Cleavage
None  
Perfect in one direction, indistinct in one direction  

Mohs Hardness
5-6.5  
6  

Chemical Composition
SiO2 · nH2O  
K2Na(Ca,Mn)2Ti[O|Si7O18(OH)]  

Optical Properties >>
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Semi Precious Gemstones

Semi Precious Gemstones


Compare Semi Precious Gemstones