Alunite and Microlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.9
5.5
Fracture
Conchoidal, Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
On {0001}, perfect
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
3.5-4
5-5.5
Chemical Composition
KAl3(SO4)2(OH)6
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Alunite and Microlite Chemical Formula
While comparing Alunite 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 Alunite and Microlite chemical formula.
- Chemical formula of Alunite- KAl3(SO4)2(OH)6
- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Alunite and Microlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alunite and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Microlite Optical Properties during the identification of gemstone. Specific gravity of Alunite is 5.5 whereas that of Microlite is 5.5.