Labradorite and Pollucite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
2.86-2.94
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
None observed
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
(Na,Ca)1-2Si3-2O8
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Labradorite and Pollucite Chemical Formula
While comparing Labradorite and Pollucite 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 Pollucite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Labradorite and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.