Piemontite and Annabergite Physical Properties

Piemontite

Annabergite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.07

1 7.18

1.5 Fracture

Uneven, Splintery

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

[001] good, [100] distinct

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

1.7 Mohs Hardness

6-6.52

2 10

1.8 Chemical Composition

Not Available

Ni3(AsO4)2•8(H2O)

Piemontite and Annabergite Chemical Formula

While comparing Piemontite 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 Piemontite and Annabergite chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

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Piemontite and Annabergite Specific Gravity

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