Bertrandite and Rutile Physical Properties

Bertrandite

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.604.20-4.30

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

{110} good, 100 moderate, parting on {092} and {011}

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

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

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Bertrandite and Rutile Chemical Formula

While comparing Bertrandite and Rutile 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 Rutile chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Bertrandite and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.