Bertrandite and Vivianite Physical Properties

Bertrandite

Vivianite

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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

2.59-2.602.64-2.70

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

(e.g. graphite).

1.6 Cleavage

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

{010} Perfect

1.7 Mohs Hardness

6-7Not Available

2 10

1.8 Chemical Composition

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

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Bertrandite and Vivianite Chemical Formula

While comparing Bertrandite and Vivianite 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 Vivianite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

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Bertrandite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.