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Cobaltite
Cobaltite

Gahnite
Gahnite



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Cobaltite
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Gahnite

Cobaltite and Gahnite Physical Properties

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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
6.34.00-4.62
Amber
1 7.18
1.5 Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Conchoidal, Uneven
1.6 Cleavage
{100} Good, {010} Good, {001} Good
Indistinct parting on [111]
1.7 Mohs Hardness
5.57.5-8
Amber
2 10
1.8 Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Cobaltite and Gahnite Chemical Formula

While comparing Cobaltite and Gahnite 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 Cobaltite and Gahnite chemical formula.

  • Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Cobaltite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cobaltite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.