Nosean and Annabergite Physical Properties

Nosean

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

2.30-2.403.07

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{110} Perfect

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

1.7 Mohs Hardness

Not Available2

2 10

1.8 Chemical Composition

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

Ni3(AsO4)2•8(H2O)

Nosean and Annabergite Chemical Formula

While comparing Nosean 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 Nosean and Annabergite chemical formula.

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

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Nosean and Annabergite Specific Gravity

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