Jadeite and Achroite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.38
2.90-3.40
Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Good on [110]
Not Available
Mohs Hardness
6.5-7
7-7.5
Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
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.
Jadeite and Achroite Chemical Formula
While comparing Jadeite 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 Jadeite and Achroite chemical formula.
- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
- 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.
Jadeite and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jadeite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jadeite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Jadeite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.