Afghanite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
3.30-3.40
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, Brittle, Conchoidal
Cleavage
Perfect {10 1 0}
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
5.5-6
6.5-7
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Afghanite and Diaspore Chemical Formula
While comparing Afghanite and Diaspore 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 Diaspore 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 Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Afghanite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.