Poldervaartite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.91
2.69-2.72
Fracture
Handbook of mineralogy (2001)
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
None
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
Not Available
6-6.5
Chemical Composition
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
(Na,Ca)1-2Si3-2O8
Poldervaartite and Labradorite Chemical Formula
While comparing Poldervaartite and Labradorite 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 Labradorite chemical formula.
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Poldervaartite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poldervaartite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.