Annabergite and Almandine Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.07
3.95-4.30
Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {010}, indistinct on {100} and {102}
none
Chemical Composition
Ni3(AsO4)2•8(H2O)
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Annabergite and Almandine Chemical Formula
While comparing Annabergite 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 Annabergite and Almandine chemical formula.
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Annabergite and Almandine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Annabergite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.