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Poudretteite
Poudretteite

Gahnospinel
Gahnospinel



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Poudretteite
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Gahnospinel

Poudretteite and Gahnospinel Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.51-2.53
3.65-4.55
1.5 Fracture
Conchoidal, Splintery
ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
None
None, but may exhibit slight parting
1.7 Mohs Hardness
5
7.5-8
1.8 Chemical Composition
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Poudretteite and Gahnospinel Chemical Formula

While comparing Poudretteite and Gahnospinel 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 Poudretteite and Gahnospinel chemical formula.

  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Poudretteite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poudretteite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.