Riebeckite and Papagoite Physical Properties

Riebeckite

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

3.28-3.443.25

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Brittle, Metallic

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

Imperfect in one direction

1.7 Mohs Hardness

5.0-6.05-5.5

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Papagoite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Papagoite chemical formula.

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

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Riebeckite and Papagoite Specific Gravity

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