Almandine and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.95-4.30
2.67-2.78
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
none
Imperfect on the [0001]
Mohs Hardness
7-7.5
7.5-8
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Be3Al2SiO6
Almandine and Emerald Chemical Formula
While comparing Almandine and Emerald 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 Almandine and Emerald chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Emerald- Be3Al2SiO6
Almandine and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Emerald Optical Properties during the identification of gemstone. Specific gravity of Almandine is 2.67-2.78 whereas that of Emerald is 2.67-2.78.