Emerald and Boracite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
2.95-2.96
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Imperfect on the [0001]
None
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
Be3Al2SiO6
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Boracite Chemical Formula
While comparing Emerald and Boracite 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 Emerald and Boracite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Boracite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Boracite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.95-2.96 whereas that of Boracite is 2.95-2.96.
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