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Pyromorphite
Pyromorphite

Astrophyllite
Astrophyllite



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Pyromorphite
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Astrophyllite

Pyromorphite and Astrophyllite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
6.5-7.13.2-3.4
Amber
1 7.18
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, Brittle, Metallic
1.6 Cleavage
Imperfect- [10 1 1]
Perfect on [001] imperfect on [100]
1.7 Mohs Hardness
3.5-43
Amber
2 10
1.8 Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Pyromorphite and Astrophyllite Chemical Formula

While comparing Pyromorphite and Astrophyllite 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 Astrophyllite chemical formula.

  • Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  • Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Pyromorphite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.