Adamite and Spinel Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
4.32-4.48
3.64-3.66
Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{101}, good; {010}, poor
None, but may exhibit slight parting
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
MgAl2O4
Adamite and Spinel Chemical Formula
While comparing Adamite and Spinel 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 Adamite and Spinel chemical formula.
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
- Chemical formula of Spinel- MgAl2O4
Adamite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Adamite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Adamite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.