Polyhalite and Goshenite Physical Properties

Polyhalite

Goshenite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.782.60-2.90

1 7.18

1.5 Fracture

Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {10 1 }; parting on {010}

3,1 basal

1.7 Mohs Hardness

3.57.5-8

2 10

1.8 Chemical Composition

Not Available

Be₃Al₂SiO₆

Polyhalite and Goshenite Chemical Formula

While comparing Polyhalite and Goshenite 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 Goshenite chemical formula.

Chemical formula of Goshenite- Be₃Al₂SiO₆

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Polyhalite and Goshenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Goshenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Goshenite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.60-2.90 whereas that of Goshenite is 2.60-2.90.