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Pyromorphite
Pyromorphite

Bustamite
Bustamite



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Pyromorphite
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Bustamite

Pyromorphite and Bustamite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Partly soluble in HCl.
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.5-7.13.32-3.43
Amber
1 7.18
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Imperfect- [10 1 1]
{100} perfect; {110} and {1 1 0} good; {010} poor
1.7 Mohs Hardness
3.5-45.5-6
Amber
2 10
1.8 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Bustamite Chemical Formula

While comparing Pyromorphite and Bustamite 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 Bustamite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyromorphite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.