Annabergite and Papagoite Physical Properties

Annabergite

Papagoite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.073.25

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Brittle, Metallic

1.6 Cleavage

Perfect on {010}, indistinct on {100} and {102}

Imperfect in one direction

1.7 Mohs Hardness

25-5.5

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

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

Annabergite and Papagoite Chemical Formula

While comparing Annabergite 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 Annabergite and Papagoite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Annabergite and Papagoite Specific Gravity

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