Umbalite and Microlite Physical Properties
Specific Gravity
3.62-4.33
5.5
Fracture
Uneven
Conchoidal
Cleavage
Indiscernible
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
7-7.5
5-5.5
Chemical Composition
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Umbalite and Microlite Chemical Formula
While comparing Umbalite and Microlite 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 Umbalite and Microlite chemical formula.
- Chemical formula of Umbalite- Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Umbalite and Microlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Umbalite and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Umbalite and Microlite Optical Properties during the identification of gemstone. Specific gravity of Umbalite is 5.5 whereas that of Microlite is 5.5.