Labradorite and Caledonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
5.6-5.76
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
[001] perfect; [100] distinct
Mohs Hardness
6-6.5
2.5-3
Chemical Composition
(Na,Ca)1-2Si3-2O8
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Labradorite and Caledonite Chemical Formula
While comparing Labradorite and Caledonite 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 Caledonite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Labradorite and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.