Siderite and Willemite Physical Properties
Specific Gravity
3.83-3.89
3.89-4.18
Fracture
Uneven, Conchoidal
Conchoidal, Uneven
Cleavage
Perfect on {01 1 1}
{0001}, {11 2 0} imperfect
Mohs Hardness
3.5-4.5
5.5
Chemical Composition
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Siderite and Willemite Chemical Formula
While comparing Siderite and Willemite 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 Willemite chemical formula.
- Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Siderite and Willemite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Siderite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.