Annabergite and Ajoite Physical Properties

Annabergite

Ajoite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.072.96

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}

Perfect on {010}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Annabergite and Ajoite Chemical Formula

While comparing Annabergite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Annabergite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 2.96 whereas that of Ajoite is 2.96.