Beryllonite and Willemite Physical Properties
Specific Gravity
2.79-2.87
3.89-4.18
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
{0001}, {11 2 0} imperfect
Chemical Composition
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Beryllonite and Willemite Chemical Formula
While comparing Beryllonite and Willemite 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 Willemite chemical formula.
- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Beryllonite and Willemite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Beryllonite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.