Tourmaline and Rutile Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Insoluble in acids
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
4.20-4.30
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Indistinct
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
7-7.5
6-6.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Tourmaline and Rutile Chemical Formula
While comparing Tourmaline and Rutile 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 Rutile 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 Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Tourmaline and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Rutile Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 4.20-4.30 whereas that of Rutile is 4.20-4.30.