Goshenite and Afghanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.90
2.55-2.65
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
3,1 basal
Perfect {10 1 0}
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
Be3Al2SiO6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Goshenite and Afghanite Chemical Formula
While comparing Goshenite and Afghanite 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 Goshenite and Afghanite chemical formula.
- Chemical formula of Goshenite- Be3Al2SiO6
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Goshenite and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Goshenite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goshenite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Goshenite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.