Chalcopyrite and Ettringite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
4.1-4.3
1.77
Fracture
Uneven, Brittle, Metallic
Not Available
Cleavage
Indistinct on {011}
Perfect on {10 1 0}
Mohs Hardness
3.5-4
2-2.5
Chemical Composition
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chalcopyrite and Ettringite Chemical Formula
While comparing Chalcopyrite and Ettringite 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 Chalcopyrite and Ettringite chemical formula.
- Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chalcopyrite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcopyrite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcopyrite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Chalcopyrite is 1.77 whereas that of Ettringite is 1.77.