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Pyromorphite
Pyromorphite

Colemanite
Colemanite



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Pyromorphite
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Colemanite

Pyromorphite and Colemanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
6.5-7.1
Uneven, Conchoidal
Imperfect- [10 1 1]
3.5-4
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
 
-
-
-
2.40-2.42
-
{010} Perfect, {001} Distinct
4.5
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Colemanite Chemical Formula

While comparing Pyromorphite and Colemanite 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 Colemanite chemical formula.

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Pyromorphite and Colemanite Specific Gravity

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