Realgar and Apatite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.56
3.16-3.23
Fracture
(e.g. graphite).
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
{010} Good
[0001] indistinct, [1010] indistinct
Mohs Hardness
Not Available
5
Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Realgar and Apatite Chemical Formula
While comparing Realgar and Apatite 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 Apatite chemical formula.
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Realgar and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Realgar and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Apatite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.16-3.23 whereas that of Apatite is 3.16-3.23.