Gibbsite and Verdite Physical Properties

Gibbsite

Verdite

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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

2.352.80-3.0

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Not Available

1.6 Cleavage

{001} Perfect

{110} Good

1.7 Mohs Hardness

2.5-33

2 10

1.8 Chemical Composition

Al(OH)3

NaFeS2•2(H2O)

Gibbsite and Verdite Chemical Formula

While comparing Gibbsite and Verdite 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 Gibbsite and Verdite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Verdite- NaFeS2•2(H2O)

Compare Grey Gemstones

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Gibbsite Vs Pallasite

Gibbsite and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Verdite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.80-3.0 whereas that of Verdite is 2.80-3.0.