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Pyromorphite
Pyromorphite

Creedite
Creedite



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Pyromorphite
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Creedite

Pyromorphite and Creedite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

6.5-7.12.70
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Uneven, Conchoidal

Cleavage

Imperfect- [10 1 1]
Perfect on {100}

Mohs Hardness

3.5-44.5
2 10
👆🏻

Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Pyromorphite and Creedite Chemical Formula

While comparing Pyromorphite and Creedite 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 Creedite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Pyromorphite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.70 whereas that of Creedite is 2.70.