Bertrandite and Boracite Physical Properties

Bertrandite

Boracite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.602.95-2.96

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

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

None

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)

Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Bertrandite and Boracite Chemical Formula

While comparing Bertrandite and Boracite 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 Boracite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bertrandite and Boracite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Boracite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.95-2.96 whereas that of Boracite is 2.95-2.96.