Afghanite and Celestine Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
3.90-4.00
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect {10 1 0}
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
5.5-6
3-3.5
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Celestine Chemical Formula
While comparing Afghanite and Celestine 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 Celestine 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 Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Celestine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.