Bertrandite and Nosean Physical Properties

Bertrandite

Nosean

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.602.30-2.40

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

{110} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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

Bertrandite and Nosean Chemical Formula

While comparing Bertrandite 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 Bertrandite and Nosean chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)

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Bertrandite and Nosean Specific Gravity

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