Annabergite and Boulder Opal Physical Properties
Tenacity
Sectile
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.07
1.98-2.25
Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {010}, indistinct on {100} and {102}
Not Available
Chemical Composition
Ni3(AsO4)2•8(H2O)
SiO 2 + H 2OUlrich Henn and Claudio C.
Annabergite and Boulder Opal Chemical Formula
While comparing Annabergite and Boulder Opal 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 Boulder Opal chemical formula.
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
- Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Annabergite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Annabergite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.