Annabergite and Nosean Physical Properties

Annabergite

Nosean

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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

3.072.30-2.40

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

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

{110} Perfect

1.7 Mohs Hardness

2Not Available

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

Annabergite and Nosean Chemical Formula

While comparing Annabergite and Nosean 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 Nosean chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

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Annabergite and Nosean Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.