Liddicoatite and Bertrandite Physical Properties

Liddicoatite

Bertrandite

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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

3.022.59-2.60

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{0001} Poor

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

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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

Liddicoatite and Bertrandite Chemical Formula

While comparing Liddicoatite and Bertrandite 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 Liddicoatite and Bertrandite chemical formula.

Chemical formula of Liddicoatite- Ca(Li 2Al)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Liddicoatite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Liddicoatite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Liddicoatite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Liddicoatite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.