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Sylvite
Sylvite

Pyromorphite
Pyromorphite



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Sylvite
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Pyromorphite

Sylvite and Pyromorphite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

1.9936.5-7.1
1 7.18
👆🏻

Fracture

Uneven
Uneven, Conchoidal

Cleavage

Perfect on [100], [010], [001]
Imperfect- [10 1 1]

Mohs Hardness

2.53.5-4
2 10
👆🏻

Chemical Composition

KCl
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Sylvite and Pyromorphite Chemical Formula

While comparing Sylvite 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 Sylvite and Pyromorphite chemical formula.

  • Chemical formula of Sylvite- KCl
  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Sylvite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.