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Polyhalite
Polyhalite

Chrysoprase
Chrysoprase



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Polyhalite
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Chrysoprase

Polyhalite and Chrysoprase Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.78
2.58-2.64
1.5 Fracture
Conchoidal, Brittle
Gems, Sixth Edition (2006)
1.6 Cleavage
Perfect on {10 1 }; parting on {010}
None
1.7 Mohs Hardness
3.5
6.5-7
1.8 Chemical Composition
Not Available
SiO2 (with a high level of nickel impurities )

Polyhalite and Chrysoprase Chemical Formula

While comparing Polyhalite and Chrysoprase 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 Chrysoprase chemical formula.

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  • Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )

Polyhalite and Chrysoprase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Chrysoprase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Chrysoprase Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.58-2.64 whereas that of Chrysoprase is 2.58-2.64.