Afghanite and Wavellite Physical Properties
Specific Gravity
2.55-2.65
2.36
Fracture
Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
Perfect {10 1 0}
[110] perfect, [101] good, [010] distinct
Mohs Hardness
5.5-6
3.5-4
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Wavellite Chemical Formula
While comparing Afghanite 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 Afghanite and Wavellite chemical formula.
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Wavellite- Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Wavellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Wavellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Wavellite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.36 whereas that of Wavellite is 2.36.