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