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Brazilianite
Brazilianite

Polyhalite
Polyhalite



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Brazilianite
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Polyhalite

Brazilianite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.98-2.99
Conchoidal
(010) Distinct to good
5.5
NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Brazilianite and Polyhalite Chemical Formula

While comparing Brazilianite and Polyhalite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Brazilianite and Polyhalite chemical formula.

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Brazilianite and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brazilianite and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brazilianite Vs Polyhalite during the identification of gemstone. Specific gravity of Brazilianite is whereas that of Polyhalite is .