Adamite and Nepheline Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.32-4.48
2.55-2.65
Fracture
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{101}, good; {010}, poor
[1010] Poor
Chemical Composition
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Adamite and Nepheline Chemical Formula
While comparing Adamite and Nepheline 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 Nepheline chemical formula.
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Adamite and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Adamite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Adamite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.