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Gemstones



Chlorite group and Variscite Physical Properties


Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
2.42-2.58  
2.6-3.3  

Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann  
Lamellar  

Cleavage
[010] perfect  
Perfect 001  

Mohs Hardness
4-5  
2-2.5  

Chemical Composition
AlPO4 · 2(H2O)  
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6  

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