Apatite and Galena Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.16-3.23
6.23
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Subconchoidal, Brittle, Metallic
Cleavage
[0001] indistinct, [1010] indistinct
Cubic perfect on [001], parting on [111]
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
PbS
Apatite and Galena Chemical Formula
While comparing Apatite and Galena 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 Apatite and Galena chemical formula.
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Galena- PbS
Apatite and Galena Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Galena Optical Properties during the identification of gemstone. Specific gravity of Apatite is 6.23 whereas that of Galena is 6.23.