Annabergite and Apatite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.07
3.16-3.23
Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Cleavage
Perfect on {010}, indistinct on {100} and {102}
[0001] indistinct, [1010] indistinct
Chemical Composition
Ni3(AsO4)2•8(H2O)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Annabergite and Apatite Chemical Formula
While comparing Annabergite 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 Annabergite and Apatite chemical formula.
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
- Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Annabergite and Apatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Annabergite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Apatite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.16-3.23 whereas that of Apatite is 3.16-3.23.