Pollucite and Wavellite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Readily soluble in HF
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.86-2.94
2.36
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
Cleavage
None observed
[110] perfect, [101] good, [010] distinct
Mohs Hardness
6.5-7
3.5-4
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Wavellite Chemical Formula
While comparing Pollucite and Wavellite 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 Wavellite 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 Wavellite- Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pollucite and Wavellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pollucite and Wavellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Wavellite Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 2.36 whereas that of Wavellite is 2.36.