Papagoite and Polyhalite Physical Properties

Papagoite

Polyhalite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.252.78

1 7.18

1.5 Fracture

Brittle, Metallic

Conchoidal, Brittle

1.6 Cleavage

Imperfect in one direction

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

1.7 Mohs Hardness

5-5.53.5

2 10

1.8 Chemical Composition

CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Papagoite and Polyhalite Chemical Formula

While comparing Papagoite 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 Papagoite and Polyhalite chemical formula.

Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Papagoite and Polyhalite Specific Gravity

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