Bertrandite and Fluorapatite Physical Properties

Bertrandite

Fluorapatite

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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

2.59-2.603.1-3.25

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

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

Indistinct

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

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

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Bertrandite and Fluorapatite Chemical Formula

While comparing Bertrandite and Fluorapatite 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 Fluorapatite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

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Bertrandite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.