Faustite and Pyromorphite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.9
6.5-7.1
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Cleavage
{???} Indistinct
Imperfect- [10 1 1]
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Faustite and Pyromorphite Chemical Formula
While comparing Faustite and Pyromorphite 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 Faustite and Pyromorphite chemical formula.
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Faustite and Pyromorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.