Emerald and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
3.30-3.40
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Brittle, Conchoidal
Cleavage
Imperfect on the [0001]
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
Be3Al2SiO6
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Emerald and Diaspore Chemical Formula
While comparing Emerald and Diaspore 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 Diaspore chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Emerald and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.
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