Pyromorphite and Precious Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
1.98-2.25
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Cleavage
Imperfect- [10 1 1]
Not Available
Mohs Hardness
3.5-4
5-6.5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
SiO 2 · nH 2OGemdat.org , Management Team (2012)
Pyromorphite and Precious Opal Chemical Formula
While comparing Pyromorphite and Precious Opal 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 Precious Opal chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Pyromorphite and Precious Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Precious Opal Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 1.98-2.25 whereas that of Precious Opal is 1.98-2.25.