Siderite and Spinel Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
3.83-3.89
3.64-3.66
Fracture
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {01 1 1}
None, but may exhibit slight parting
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgAl2O4
Siderite and Spinel Chemical Formula
While comparing Siderite and Spinel 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 Siderite and Spinel chemical formula.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Spinel- MgAl2O4
Siderite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Siderite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.