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Pyromorphite
Pyromorphite

Andradite
Andradite



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Pyromorphite
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Andradite

Pyromorphite and Andradite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.5-7.13.70-4.10
Amber
1 7.18
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Imperfect- [10 1 1]
none
1.7 Mohs Hardness
3.5-46.5-7
Amber
2 10
1.8 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pyromorphite and Andradite Chemical Formula

While comparing Pyromorphite and Andradite 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 Andradite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Pyromorphite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.