Achroite and Chalcopyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.90-3.40
4.1-4.3
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Brittle, Metallic
Cleavage
Not Available
Indistinct on {011}
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
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.
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Achroite and Chalcopyrite Chemical Formula
While comparing Achroite and Chalcopyrite 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 Achroite and Chalcopyrite chemical formula.
- 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.
- Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Achroite and Chalcopyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Achroite and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Achroite is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.