Annabergite and Andradite Garnet Physical Properties

Annabergite

Andradite Garnet

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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

3.073.8-3.9

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Not Available

1.6 Cleavage

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

None

1.7 Mohs Hardness

26.5-7.5

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

Ca₃Fe³⁺₂Si₃O₁₂

Annabergite and Andradite Garnet Chemical Formula

While comparing Annabergite and Andradite Garnet 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 Andradite Garnet chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Annabergite and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.