Beryllonite and Pyrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.79-2.87
2.65-2.90
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Gemstones (2009), Flexible Flexible fragments.
Cleavage
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
{001} Perfect
Mohs Hardness
5.5-6
Not Available
Chemical Composition
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Beryllonite and Pyrophyllite Chemical Formula
While comparing Beryllonite and Pyrophyllite 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 Pyrophyllite chemical formula.
- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Beryllonite and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Beryllonite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.