Bertrandite and Gahnite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.59-2.60
4.00-4.62
Fracture
Brittle, Metallic, Brittle, Metallic
Conchoidal, Uneven
Cleavage
{001} Perfect, {110} Distinct, {101} Distinct
Indistinct parting on [111]
Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Gahnite Chemical Formula
While comparing Bertrandite and Gahnite 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 Gahnite chemical formula.
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Gahnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bertrandite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.