Realgar and Almandine Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.56
3.95-4.30
Fracture
(e.g. graphite).
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Mohs Hardness
Not Available
7-7.5
Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Realgar and Almandine Chemical Formula
While comparing Realgar and Almandine 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 Almandine chemical formula.
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Realgar and Almandine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Realgar and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Almandine Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.95-4.30 whereas that of Almandine is 3.95-4.30.