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Gibbsite
Gibbsite

Hemimorphite
Hemimorphite



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Gibbsite
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Hemimorphite

Gibbsite and Hemimorphite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.353.30-3.50
Amber
1 7.18
1.5 Fracture
Fibrous, Difficult, Fibrous
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
1.6 Cleavage
{001} Perfect
Perfect on {110}, poor on {101}, {001} rare
1.7 Mohs Hardness
2.5-35
Amber
2 10
1.8 Chemical Composition
Al(OH)3
Zn 4Si 2O 7(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Gibbsite and Hemimorphite Chemical Formula

While comparing Gibbsite and Hemimorphite 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 Hemimorphite chemical formula.

  • Chemical formula of Gibbsite- Al(OH)3
  • Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Gibbsite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.