Aragonite and Pollucite Physical Properties
Solubility
Dilute acid
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
2.86-2.94
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Distinct on {010}, imperfect {110} and {011}
None observed
Mohs Hardness
3.5-4
6.5-7
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Aragonite and Pollucite Chemical Formula
While comparing Aragonite 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 Aragonite and Pollucite chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Aragonite and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.