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Polyhalite
Polyhalite

Stichtite
Stichtite



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Polyhalite
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Stichtite

Polyhalite and Stichtite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O
 
-
-
-
2.11-2.20
Uneven
Perfect on {0001}
-9999
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Polyhalite and Stichtite Chemical Formula

While comparing Polyhalite and Stichtite 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 Polyhalite and Stichtite chemical formula.

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Polyhalite and Stichtite Specific Gravity

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