Tourmaline and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
3.30-3.40
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
Cleavage
Indistinct
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
7-7.5
6.5-7
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Tourmaline and Diaspore Chemical Formula
While comparing Tourmaline and Diaspore 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 Diaspore 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 Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Tourmaline and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.