Pollucite and Carnelian Physical Properties
Tenacity
Brittle
Not Available
Solubility
Readily soluble in HF
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
2.58-2.64
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
None observed
Absent
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
SiO2
Pollucite and Carnelian Chemical Formula
While comparing Pollucite and Carnelian 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 Carnelian 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 Carnelian- SiO2
Pollucite and Carnelian Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.