Chrome Tourmaline and Achroite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
2.90-3.40
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
3,2
Not Available
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas.
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chrome Tourmaline and Achroite Chemical Formula
While comparing Chrome Tourmaline and Achroite 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 Chrome Tourmaline and Achroite chemical formula.
- Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chrome Tourmaline and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome Tourmaline and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome Tourmaline and Achroite Optical Properties during the identification of gemstone. Specific gravity of Chrome Tourmaline is 2.90-3.40 whereas that of Achroite is 2.90-3.40.