Almandine and Hardystonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.30
3.396-3.443
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Brittle, Metallic
Cleavage
none
[001] good, [100] and [110] fair
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Almandine and Hardystonite Chemical Formula
While comparing Almandine and Hardystonite 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 Hardystonite chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Almandine and Hardystonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.