Polyhalite and Microlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.78
5.5
Fracture
Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Perfect on {10 1 }; parting on {010}
{111} Indistinct, {111} Indistinct, {111} Indistinct
Chemical Composition
Not Available
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Polyhalite and Microlite Chemical Formula
While comparing Polyhalite 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 Polyhalite and Microlite chemical formula.
>- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Polyhalite and Microlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Polyhalite and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Microlite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 5.5 whereas that of Microlite is 5.5.