Labradorite and Calcite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
2.67-2.73
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Perfect on [10 1 1] three directions with angle of 74° 55
Chemical Composition
(Na,Ca)1-2Si3-2O8
CaCO 3Ulrich Henn and Claudio C.
Labradorite and Calcite Chemical Formula
While comparing Labradorite and Calcite 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 Calcite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Labradorite and Calcite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.