Almandine Garnet and Grandidierite Physical Properties

Almandine Garnet

Grandidierite

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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

4.32.85-3.00

1 7.18

1.5 Fracture

Not Available

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

None.

Perfect

1.7 Mohs Hardness

7.5-8.57.5

2 10

1.8 Chemical Composition

Fe₃Al₂Si₃O₁₂

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Almandine Garnet and Grandidierite Chemical Formula

While comparing Almandine Garnet and Grandidierite 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 Almandine Garnet and Grandidierite chemical formula.

Chemical formula of Almandine Garnet- Fe₃Al₂Si₃O₁₂
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Almandine Garnet and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine Garnet and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine Garnet and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Almandine Garnet is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.