Glaucophane and Andradite Garnet Physical Properties

Glaucophane

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

3-3.153.8-3.9

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Not Available

1.6 Cleavage

Good on [110] and on [001]

None

1.7 Mohs Hardness

6.0-6.56.5-7.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Ca₃Fe³⁺₂Si₃O₁₂

Glaucophane and Andradite Garnet Chemical Formula

While comparing Glaucophane 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 Glaucophane and Andradite Garnet chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Glaucophane and Andradite Garnet Specific Gravity

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