Pollucite and Calcite Physical Properties
Solubility
Readily soluble in HF
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
2.67-2.73
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
None observed
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
CaCO 3Ulrich Henn and Claudio C.
Pollucite and Calcite Chemical Formula
While comparing Pollucite and Calcite 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 Calcite 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 Calcite- CaCO 3Ulrich Henn and Claudio C.
Pollucite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.