Annabergite and Sylvite Physical Properties

Annabergite

Sylvite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.071.993

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Uneven, Brittle

1.6 Cleavage

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

Perfect on [100], [010], [001]

1.7 Mohs Hardness

22.5

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

Not Available

Annabergite and Sylvite Chemical Formula

While comparing Annabergite and Sylvite 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 Sylvite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Annabergite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 1.993 whereas that of Sylvite is 1.993.