Bertrandite and Fluorite Physical Properties

Bertrandite

Fluorite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

slightly water soluble and in hot hydrochloric acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.59-2.603.00-3.25

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

Octahedral, perfect on {111}, parting on {011}

1.7 Mohs Hardness

6-74

2 10

1.8 Chemical Composition

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

CaF₂

Bertrandite and Fluorite Chemical Formula

While comparing Bertrandite and Fluorite 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 Fluorite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Fluorite- CaF₂

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Bertrandite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.