Annabergite and Omphacite Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.07
3.16-3.43
Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Perfect on {010}, indistinct on {100} and {102}
{110} Good, {110} Good
Chemical Composition
Ni3(AsO4)2•8(H2O)
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Annabergite and Omphacite Chemical Formula
While comparing Annabergite and Omphacite 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 Omphacite chemical formula.
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
- Chemical formula of Omphacite- (Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Annabergite and Omphacite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Annabergite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.