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Williamsite
Williamsite

Poudretteite
Poudretteite



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Williamsite
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Poudretteite

Williamsite and Poudretteite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.51-2.632.51-2.53
Amber
1 7.18
1.5 Fracture
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
Conchoidal, Splintery
1.6 Cleavage
Not Available
None
1.7 Mohs Hardness
45
Amber
2 10
1.8 Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Williamsite and Poudretteite Chemical Formula

While comparing Williamsite and Poudretteite 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 Williamsite and Poudretteite chemical formula.

  • Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006)

Williamsite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Williamsite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Williamsite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Williamsite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.