Beryllonite and Apophyllite KF Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.79-2.87
2.33-2.37
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Brittle, Uneven, Brittle, Uneven
Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Perfect on {001}, imperfect on {110}
Mohs Hardness
5.5-6
4.5-5
Chemical Composition
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na)Ca4Si8O20(F,OH)•8(H2O)
Beryllonite and Apophyllite KF Chemical Formula
While comparing Beryllonite and Apophyllite KF 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 Beryllonite and Apophyllite KF chemical formula.
- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
Beryllonite and Apophyllite KF Specific Gravity
Another important criteria for qualitative analysis of gemstones is Beryllonite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.