Annabergite and Cacoxenite Physical Properties

Annabergite

Cacoxenite

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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

3.072.2-2.6

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Uneven

1.6 Cleavage

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

None

1.7 Mohs Hardness

23-4

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

Annabergite and Cacoxenite Chemical Formula

While comparing Annabergite and Cacoxenite 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 Cacoxenite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Cacoxenite- (Fe+++,Al)25(PO4)17O6(OH)12•75(H2O)

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Annabergite and Cacoxenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Cacoxenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Cacoxenite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 2.2-2.6 whereas that of Cacoxenite is 2.2-2.6.