Bertrandite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.59-2.60
2.69-2.72
Fracture
Brittle, Metallic, Brittle, Metallic
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
{001} Perfect, {110} Distinct, {101} Distinct
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Chemical Composition
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
(Na,Ca)1-2Si3-2O8
Bertrandite and Labradorite Chemical Formula
While comparing Bertrandite and Labradorite 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 Labradorite chemical formula.
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Bertrandite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bertrandite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.