Labradorite and Cuprite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
5.85-6.15
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Fair in four directions forming octahedrons
Mohs Hardness
6-6.5
3.5-4
Chemical Composition
(Na,Ca)1-2Si3-2O8
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Labradorite and Cuprite Chemical Formula
While comparing Labradorite and Cuprite 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 Labradorite and Cuprite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Labradorite and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.