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Umbalite
Umbalite

Baryte Barite
Baryte Barite



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Umbalite
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Baryte Barite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.62-4.33
Uneven
Indiscernible
7-7.5
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
 
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-
-
4.43-4.46
-
Perfect
3-3.5
BaSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references