Afghanite and Beryllonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.79-2.87
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect {10 1 0}
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Mohs Hardness
5.5-6
5.5-6
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Beryllonite Chemical Formula
While comparing Afghanite and Beryllonite 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 Beryllonite 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 Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Afghanite and Beryllonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.