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