Bertrandite and Bytownite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.59-2.60
2.72-2.75
Fracture
Brittle, Metallic, Brittle, Metallic
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
{001} Perfect, {110} Distinct, {101} Distinct
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Bytownite Chemical Formula
While comparing Bertrandite and Bytownite 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 Bertrandite and Bytownite chemical formula.
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Bytownite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bertrandite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.