Alexandrite and Colemanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
2.40-2.42
Fracture
Not Available
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
1,1 ; 3,2.
{010} Perfect, {001} Distinct
Chemical Composition
BeAl 2 O 4
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Alexandrite and Colemanite Chemical Formula
While comparing Alexandrite and Colemanite 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 Alexandrite and Colemanite chemical formula.
- Chemical formula of Alexandrite- BeAl 2 O 4
- Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Alexandrite and Colemanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alexandrite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.