Tourmaline and Hardystonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
3.396-3.443
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Brittle, Metallic
Cleavage
Indistinct
[001] good, [100] and [110] fair
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Tourmaline and Hardystonite Chemical Formula
While comparing Tourmaline 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 Tourmaline and Hardystonite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
Tourmaline and Hardystonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.