Annabergite and Anthophyllite Physical Properties

Annabergite

Anthophyllite

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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

3.07

2.9-3.5

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

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

{110} Perfect, {???} Distinct, {???} Distinct

1.7 Mohs Hardness

5.5-6

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Annabergite and Anthophyllite Chemical Formula

While comparing Annabergite and Anthophyllite 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 Anthophyllite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Anthophyllite- (Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Annabergite and Anthophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Anthophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Anthophyllite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 2.9-3.5 whereas that of Anthophyllite is 2.9-3.5.