Pollucite and Andesine Physical Properties
Solubility
Readily soluble in HF
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
2.65-2.69
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
Cleavage
None observed
Perfect on {001}, good on {010}
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
(Na,Ca)Al1-2Si3-2O8
Pollucite and Andesine Chemical Formula
While comparing Pollucite and Andesine 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 Pollucite and Andesine chemical formula.
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Pollucite and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.