Antigorite and Annabergite Physical Properties

Antigorite

Annabergite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.803.07

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{001} Good

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

1.7 Mohs Hardness

5-5.52

2 10

1.8 Chemical Composition

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

Ni3(AsO4)2•8(H2O)

Antigorite and Annabergite Chemical Formula

While comparing Antigorite and Annabergite 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 Antigorite and Annabergite chemical formula.

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

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Antigorite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Antigorite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Antigorite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Antigorite is 3.07 whereas that of Annabergite is 3.07.