Realgar and Staurolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.56
3.7-3.8
Fracture
(e.g. graphite).
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{010} Good
Distinct on {010}
Mohs Hardness
Not Available
7-7.5
Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Realgar and Staurolite Chemical Formula
While comparing Realgar and Staurolite 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 Realgar and Staurolite chemical formula.
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Realgar and Staurolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Realgar and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.