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Strontianite
Strontianite

Polyhalite
Polyhalite



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Strontianite
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Polyhalite

Strontianite and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.63-3.79
Uneven, Conchoidal
{110} Good
3.5
SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Strontianite and Polyhalite Chemical Formula

While comparing Strontianite 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 Strontianite and Polyhalite chemical formula.

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Strontianite and Polyhalite Specific Gravity

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