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