Adamite and Star Sapphire Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.32-4.48
3.90-4.05
Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Not Available
Cleavage
{101}, good; {010}, poor
Not Available
Mohs Hardness
3.5
Not Available
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Al 2O 3Ulrich Henn and Claudio C.
Adamite and Star Sapphire Chemical Formula
While comparing Adamite and Star Sapphire 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 Star Sapphire chemical formula.
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Adamite and Star Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Adamite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Adamite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.