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Celestine
Chrome Pyrope
Chrome Pyrope and Celestine Physical Properties


Physical Properties
Tenacity
Brittle  
-  
Solubility
-  
-  
Durability
-  
-  
Specific Gravity
3.90-4.00  
3.62-3.80  
Fracture
Conchoidal  
Conchoidal  
Cleavage
Perfect on {001}, good on {210}, poor on {010}  
None  
Mohs Hardness
3-3.5  
7-7.5  
Chemical Composition
SrSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references  
Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)  
Optical Properties >>
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