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Pyromorphite
Pyromorphite

Zoisite
Zoisite



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Pyromorphite
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Zoisite

Pyromorphite and Zoisite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

6.5-7.13.20-3.50
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven, Conchoidal, Even

Cleavage

Imperfect- [10 1 1]
Perfect {010} imperfect {100}

Mohs Hardness

3.5-46-7
2 10
👆🏻

Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Ca2Al3(SiO4)3(OH)

Pyromorphite and Zoisite Chemical Formula

While comparing Pyromorphite and Zoisite 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 Zoisite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)

Pyromorphite and Zoisite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.