Gibbsite and Dallasite Physical Properties

Gibbsite

Dallasite

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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

2.352.58-2.91

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

Not Available

1.6 Cleavage

{001} Perfect

Not Available

1.7 Mohs Hardness

2.5-36.5-7

2 10

1.8 Chemical Composition

Al(OH)3

Not Available

Gibbsite and Dallasite Chemical Formula

While comparing Gibbsite and Dallasite 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 Dallasite chemical formula.

Chemical formula of Gibbsite- Al(OH)3

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Gibbsite and Dallasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Dallasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Dallasite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.58-2.91 whereas that of Dallasite is 2.58-2.91.