Sphalerite and Scheelite Physical Properties
Specific Gravity
3.95-4.10
5.9-6.3
Fracture
Uneven
Conchoidal, Uneven
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
3.5-4
4.5-5
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sphalerite and Scheelite Chemical Formula
While comparing Sphalerite and Scheelite 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 Sphalerite and Scheelite chemical formula.
- Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Scheelite- CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sphalerite and Scheelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sphalerite and Scheelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Scheelite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 5.9-6.3 whereas that of Scheelite is 5.9-6.3.