Annabergite and Augite Physical Properties

Annabergite

Augite

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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

3.073.19-3.56

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

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

{110} Perfect, {010} Indistinct

1.7 Mohs Hardness

25.5-6

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

Annabergite and Augite Chemical Formula

While comparing Annabergite and Augite 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 Augite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)

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Annabergite and Augite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Augite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.19-3.56 whereas that of Augite is 3.19-3.56.