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Mottramite
Mottramite

Gibbsite
Gibbsite



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Mottramite
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Gibbsite

Mottramite and Gibbsite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.9
2.35
1.5 Fracture
Sub-Conchoidal, Brittle, Metallic
Fibrous, Difficult, Fibrous
1.6 Cleavage
None observed
{001} Perfect
1.7 Mohs Hardness
3
2.5-3
1.8 Chemical Composition
Not Available
Al(OH)3

Mottramite and Gibbsite Chemical Formula

While comparing Mottramite 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 Mottramite and Gibbsite chemical formula.

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  • Chemical formula of Gibbsite- Al(OH)3

Mottramite and Gibbsite Specific Gravity

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