Dioptase and Pollucite Physical Properties
Solubility
Soluble
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
3.25-3.35
2.86-2.94
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect in three directions
None observed
Chemical Composition
CuSiO 2(OH) 2Michael 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
Dioptase and Pollucite Chemical Formula
While comparing Dioptase 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 Dioptase and Pollucite chemical formula.
- Chemical formula of Dioptase- CuSiO 2(OH) 2Michael 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
Dioptase and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dioptase and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.