Emerald and Apatite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
3.16-3.23
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Imperfect on the [0001]
[0001] indistinct, [1010] indistinct
Chemical Composition
Be3Al2SiO6
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Emerald and Apatite Chemical Formula
While comparing Emerald and Apatite 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 Apatite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Emerald and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Apatite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.16-3.23 whereas that of Apatite is 3.16-3.23.
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