Aragonite and Annabergite Physical Properties
Solubility
Dilute acid
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
3.07
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Cleavage
Distinct on {010}, imperfect {110} and {011}
Perfect on {010}, indistinct on {100} and {102}
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ni3(AsO4)2•8(H2O)
Aragonite and Annabergite Chemical Formula
While comparing Aragonite 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 Aragonite and Annabergite chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Aragonite and Annabergite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.07 whereas that of Annabergite is 3.07.