Apatite and Hollandite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.16-3.23
5.05
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Brittle, Metallic
Cleavage
[0001] indistinct, [1010] indistinct
Distinct / Good, Prismatic
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Ba(Mn++++,Mn++)8O16
Apatite and Hollandite Chemical Formula
While comparing Apatite and Hollandite 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 Hollandite 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 Hollandite- Ba(Mn++++,Mn++)8O16
Apatite and Hollandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apatite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 5.05 whereas that of Hollandite is 5.05.