Bertrandite and Chrome Tourmaline Physical Properties

Bertrandite

Chrome Tourmaline

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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

2.59-2.602.85-3.35

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

3,2

1.7 Mohs Hardness

6-77-7.5

2 10

1.8 Chemical Composition

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

Tourmaline is a series of several different minerals with unique chemical formulas.

Bertrandite and Chrome Tourmaline Chemical Formula

While comparing Bertrandite and Chrome Tourmaline 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 Chrome Tourmaline chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.

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Bertrandite and Chrome Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.