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Gibbsite
Gibbsite

Amazonite
Amazonite



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Gibbsite
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Amazonite

Gibbsite and Amazonite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.35
2.55-2.57
1.5 Fracture
Fibrous, Difficult, Fibrous
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
{001} Perfect
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
1.7 Mohs Hardness
2.5-3
6-6.5
1.8 Chemical Composition
Al(OH)3
KAlSi3O8

Gibbsite and Amazonite Chemical Formula

While comparing Gibbsite and Amazonite 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 Amazonite chemical formula.

  • Chemical formula of Gibbsite- Al(OH)3
  • Chemical formula of Amazonite- KAlSi3O8

Gibbsite and Amazonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Amazonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Amazonite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.55-2.57 whereas that of Amazonite is 2.55-2.57.

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