Ruby and Annabergite Physical Properties

Ruby

Annabergite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.053.07

1 7.18

1.5 Fracture

Conchoidal

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

No true cleavage

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

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

Ni3(AsO4)2•8(H2O)

Ruby and Annabergite Chemical Formula

While comparing Ruby 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 Ruby and Annabergite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Ruby and Annabergite Specific Gravity

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