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Polyhalite
Polyhalite

Carnelian
Carnelian



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Polyhalite
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Carnelian

Polyhalite and Carnelian 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
2.782.58-2.64
Amber
1 7.18
1.5 Fracture
Conchoidal, Brittle
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Perfect on {10 1 }; parting on {010}
Absent
1.7 Mohs Hardness
3.56.5-7
Amber
2 10
1.8 Chemical Composition
Not Available
SiO2

Polyhalite and Carnelian Chemical Formula

While comparing Polyhalite and Carnelian 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 Carnelian chemical formula.

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  • Chemical formula of Carnelian- SiO2

Polyhalite and Carnelian Specific Gravity

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