Verdite and Achroite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-3.0
2.90-3.40
Fracture
Not Available
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
{110} Good
Not Available
Chemical Composition
NaFeS2•2(H2O)
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.
Verdite and Achroite Chemical Formula
While comparing Verdite 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 Verdite and Achroite chemical formula.
- Chemical formula of Verdite- NaFeS2•2(H2O)
- 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.
Verdite and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Verdite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Verdite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.