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Calcite
Calcite

Pyromorphite
Pyromorphite



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Calcite and Pyromorphite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.67-2.73
6.5-7.1
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
1.6 Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55
Imperfect- [10 1 1]
1.7 Mohs Hardness
3
3.5-4
1.8 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.

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