Sellaite and Papagoite Physical Properties

Sellaite

Papagoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-3.163.25

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

Brittle, Metallic

1.6 Cleavage

Perfect on {010} and {110}

Imperfect in one direction

1.7 Mohs Hardness

5-5.55-5.5

2 10

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

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

Sellaite and Papagoite Chemical Formula

While comparing Sellaite and Papagoite 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 Sellaite and Papagoite chemical formula.

Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Sellaite and Papagoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sellaite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 3.25 whereas that of Papagoite is 3.25.