Labradorite and Apophyllite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.72
2.30-2.50
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Perfect on (001)
Mohs Hardness
6-6.5
4.5-5
Chemical Composition
(Na,Ca)1-2Si3-2O8
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Labradorite and Apophyllite Chemical Formula
While comparing Labradorite and Apophyllite 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 Apophyllite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Labradorite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.