Bertrandite and Andradite Garnet Physical Properties

Bertrandite

Andradite Garnet

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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

2.59-2.603.8-3.9

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

Not Available

1.6 Cleavage

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

None

1.7 Mohs Hardness

6-76.5-7.5

2 10

1.8 Chemical Composition

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

Ca₃Fe³⁺₂Si₃O₁₂

Bertrandite and Andradite Garnet Chemical Formula

While comparing Bertrandite and Andradite Garnet 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 Andradite Garnet chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Bertrandite and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.