Tourmaline and Erythrite Physical Properties
Tenacity
Not Available
Sectile
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
3.06
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Indistinct
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
7-7.5
Not Available
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Co3(AsO4)2•8(H2O)
Tourmaline and Erythrite Chemical Formula
While comparing Tourmaline and Erythrite 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 Erythrite 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 Erythrite- Co3(AsO4)2•8(H2O)
Tourmaline and Erythrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.06 whereas that of Erythrite is 3.06.