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Eosphorite
Microcline
Microcline and Eosphorite Physical Properties


Physical Properties
Tenacity
-  
-  
Solubility
-  
-  
Durability
-  
-  
Specific Gravity
3.05-3.08  
2.55-2.63  
Fracture
Subconchoidal, Uneven, Conchoidal  
Uneven  
Cleavage
Poor on {100}  
{001} Perfect, {010} Good  
Mohs Hardness
5  
6-6.5  
Chemical Composition
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)  
KAlSi 3O 8Arthur Thomas , Gemstones (2009)  
Optical Properties >>
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