Pyromorphite and Labradorite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.69-2.72
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
Imperfect- [10 1 1]
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
3.5-4
6-6.5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(Na,Ca)1-2Si3-2O8
Pyromorphite and Labradorite Chemical Formula
While comparing Pyromorphite 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 Pyromorphite and Labradorite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Pyromorphite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.