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Polyhalite
Polyhalite

Emerald
Emerald



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Polyhalite
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Emerald

Polyhalite and Emerald 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
 
-
-
Hard
2.67-2.78
Uneven, ConchoidalWalter Schumann
Imperfect on the [0001]
7.5-8
Be3Al2SiO6

Polyhalite and Emerald Chemical Formula

While comparing Polyhalite and Emerald 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 Emerald chemical formula.

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Polyhalite and Emerald Specific Gravity

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