Papagoite and Spinel Physical Properties

Papagoite

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.253.64-3.66

1 7.18

1.5 Fracture

Brittle, Metallic

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Imperfect in one direction

None, but may exhibit slight parting

1.7 Mohs Hardness

5-5.58

2 10

1.8 Chemical Composition

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

MgAl₂O₄

Papagoite and Spinel Chemical Formula

While comparing Papagoite and Spinel 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 Spinel chemical formula.

Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Spinel- MgAl₂O₄

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Papagoite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Papagoite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Papagoite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Papagoite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.