Pyromorphite and Gedrite Physical Properties
Specific Gravity
6.5-7.1
3.15-3.259
Fracture
Uneven, Conchoidal
-
Cleavage
Imperfect- [10 1 1]
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
3.5-4
5.5-6
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pyromorphite and Gedrite Chemical Formula
While comparing Pyromorphite and Gedrite 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 Gedrite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pyromorphite and Gedrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.