Poldervaartite and Anorthite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.91
2.77
Fracture
Handbook of mineralogy (2001)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
None
Perfect [001] good [010] poor [110]
Mohs Hardness
Not Available
6-6.5
Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Poldervaartite and Anorthite Chemical Formula
While comparing Poldervaartite and Anorthite 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 Poldervaartite and Anorthite chemical formula.
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Poldervaartite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poldervaartite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.77 whereas that of Anorthite is 2.77.