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Mottramite and Langbeinite Physical Properties


Physical Properties

Tenacity
Brittle  
Brittle  

Solubility
Slowly dissolves in water  
Soluble  

Durability
-  
-  

Specific Gravity
-9999  
5.9  

Fracture
Conchoidal  
Sub-Conchoidal  

Cleavage
None  
None observed  

Mohs Hardness
3.5-4  
3  

Chemical Composition
K2Mg2(SO4)3  
PbCu(VO4)(OH)  

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