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Pyromorphite
Pyromorphite

Ettringite
Ettringite



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Pyromorphite
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Ettringite

Pyromorphite and Ettringite 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)
 
-
Partially soluble in water
-
1.77
-
Perfect on {10 1 0}
2-2.5
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Pyromorphite and Ettringite Chemical Formula

While comparing Pyromorphite and Ettringite 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 Ettringite chemical formula.

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Pyromorphite and Ettringite Specific Gravity

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