Poudretteite and Poldervaartite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.51-2.53
2.91
Fracture
Conchoidal, Splintery
Handbook of mineralogy (2001)
Mohs Hardness
5
Not Available
Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Poudretteite and Poldervaartite Chemical Formula
While comparing Poudretteite and Poldervaartite 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 Poldervaartite chemical formula.
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Poudretteite and Poldervaartite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poudretteite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 2.91 whereas that of Poldervaartite is 2.91.