Hauyne and Polyhalite Physical Properties

Hauyne

Polyhalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Gelatinises in acids

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.4-2.52.78

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Conchoidal, Brittle

1.6 Cleavage

Distinct on {110}

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

1.7 Mohs Hardness

5-63.5

2 10

1.8 Chemical Composition

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Not Available

Hauyne and Polyhalite Chemical Formula

While comparing Hauyne and Polyhalite 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 Hauyne and Polyhalite chemical formula.

Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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Hauyne and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hauyne and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Polyhalite Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 2.78 whereas that of Polyhalite is 2.78.