Diaspore and Nepheline Physical Properties
Tenacity
Very brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.30-3.40
2.55-2.65
Fracture
Conchoidal, Brittle, Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{010} perfect, {110} distinct, {100} in traces
[1010] Poor
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Diaspore and Nepheline Chemical Formula
While comparing Diaspore 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 Diaspore and Nepheline chemical formula.
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Diaspore and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diaspore and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.