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Pyromorphite
Pyromorphite

Coral
Coral



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Pyromorphite
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Coral

Pyromorphite and Coral Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

6.5-7.12.60-2.70
1 7.18
👆🏻

Fracture

Uneven, Conchoidal
Irregular

Cleavage

Imperfect- [10 1 1]
None

Mohs Hardness

3.5-43-4
2 10
👆🏻

Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
CaCO 3Ulrich Henn and Claudio C.

Pyromorphite and Coral Chemical Formula

While comparing Pyromorphite and Coral 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 Coral chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

Pyromorphite and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Coral Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.60-2.70 whereas that of Coral is 2.60-2.70.