Grossular Garnet and Gibbsite Physical Properties

Grossular Garnet

Gibbsite

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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

3.62.35

1 7.18

1.5 Fracture

Not Available

Fibrous, Difficult, Fibrous

1.6 Cleavage

None

{001} Perfect

1.7 Mohs Hardness

6.5-7.52.5-3

2 10

1.8 Chemical Composition

Ca₃Al₂Si₃O₁₂

Al(OH)3

Grossular Garnet and Gibbsite Chemical Formula

While comparing Grossular Garnet and Gibbsite 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 Grossular Garnet and Gibbsite chemical formula.

Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂
Chemical formula of Gibbsite- Al(OH)3

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Grossular Garnet and Gibbsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grossular Garnet and Gibbsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grossular Garnet and Gibbsite Optical Properties during the identification of gemstone. Specific gravity of Grossular Garnet is 2.35 whereas that of Gibbsite is 2.35.