Almandine and Chalcopyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.95-4.30
4.1-4.3
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Brittle, Metallic
Cleavage
none
Indistinct on {011}
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Almandine and Chalcopyrite Chemical Formula
While comparing Almandine 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 Almandine and Chalcopyrite chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Almandine and Chalcopyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.