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Calcite
Calcite

Pyromorphite
Pyromorphite



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Calcite
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Pyromorphite

Calcite and Pyromorphite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.67-2.736.5-7.1
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

Perfect on [10 1 1] three directions with angle of 74° 55
Imperfect- [10 1 1]

Mohs Hardness

33.5-4
2 10
👆🏻

Chemical Composition

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

Calcite and Pyromorphite Chemical Formula

While comparing Calcite 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 Calcite and Pyromorphite chemical formula.

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

Calcite and Pyromorphite Specific Gravity

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