Coral and Annabergite Physical Properties

Coral

Annabergite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.70

3.07

1.5 Fracture

Irregular, Irregular, Gemstones of the world (2001)

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

3-4

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Ni3(AsO4)2•8(H2O)

Coral and Annabergite Chemical Formula

While comparing Coral and Annabergite 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 Coral and Annabergite chemical formula.

Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Coral and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Coral and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Coral is 3.07 whereas that of Annabergite is 3.07.