Nepheline and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.69-2.72
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
[1010] Poor
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
(Na,Ca)1-2Si3-2O8
Nepheline and Labradorite Chemical Formula
While comparing Nepheline and Labradorite 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 Nepheline and Labradorite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Nepheline and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.