Iolite and Sphalerite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
3.95-4.10
Fracture
Not Available
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
Cleavage
3,1
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
Mg2Al4Si5O18
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Sphalerite Chemical Formula
While comparing Iolite and Sphalerite 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 Iolite and Sphalerite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Sphalerite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.