Pollucite and Stibiotantalite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Readily soluble in HF
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
Not Available
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
None observed
{???} Perfect
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
SbTaO 4Ulrich Henn and Claudio C.
Pollucite and Stibiotantalite Chemical Formula
While comparing Pollucite and Stibiotantalite 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 Stibiotantalite 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 Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Pollucite and Stibiotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is Not Available whereas that of Stibiotantalite is Not Available.