Gyrolite and Polyhalite Physical Properties

Gyrolite

Polyhalite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.482.78

1 7.18

1.5 Fracture

Brittle, Uneven, Brittle, Uneven

Conchoidal, Brittle

1.6 Cleavage

Perfect on {001}

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

1.7 Mohs Hardness

23.5

2 10

1.8 Chemical Composition

NaCa16Si23AlO60(OH)8•64(H2O)

Not Available

Gyrolite and Polyhalite Chemical Formula

While comparing Gyrolite 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 Gyrolite and Polyhalite chemical formula.

Chemical formula of Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)

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Gyrolite and Polyhalite Specific Gravity

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