Rhodolite and Bertrandite Physical Properties

Rhodolite

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

3.842.59-2.60

1 7.18

1.5 Fracture

Conchoidal

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

none, may show indistinct parting

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

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Bertrandite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Bertrandite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Rhodolite and Bertrandite Specific Gravity

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