Sylvite and Gibbsite Physical Properties

Sylvite

Gibbsite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.35

1 7.18

1.5 Fracture

Uneven, Brittle

Fibrous, Difficult, Fibrous

1.6 Cleavage

Perfect on [100], [010], [001]

{001} Perfect

1.7 Mohs Hardness

2.52.5-3

2 10

1.8 Chemical Composition

Not Available

Al(OH)3

Sylvite and Gibbsite Chemical Formula

While comparing Sylvite 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 Sylvite and Gibbsite chemical formula.

Chemical formula of Gibbsite- Al(OH)3

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Sylvite and Gibbsite Specific Gravity

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