Bertrandite and Ettringite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.59-2.60
1.77
Fracture
Brittle, Metallic, Brittle, Metallic
Not Available
Cleavage
{001} Perfect, {110} Distinct, {101} Distinct
Perfect on {10 1 0}
Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Ettringite Chemical Formula
While comparing Bertrandite and Ettringite 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 Ettringite chemical formula.
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Bertrandite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bertrandite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 1.77 whereas that of Ettringite is 1.77.