Annabergite and Antigorite Physical Properties

Annabergite

Antigorite

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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

3.072.58-2.80

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)

1.6 Cleavage

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

{001} Good

1.7 Mohs Hardness

25-5.5

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Annabergite and Antigorite Chemical Formula

While comparing Annabergite and Antigorite 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 Antigorite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

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Annabergite and Antigorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Antigorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Antigorite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 2.58-2.80 whereas that of Antigorite is 2.58-2.80.