Pyromorphite and Simpsonite Physical Properties

Pyromorphite

Simpsonite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.5-7.1Not Available

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Imperfect- [10 1 1]

None

1.7 Mohs Hardness

3.5-47-7.5

2 10

1.8 Chemical Composition

Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

Pyromorphite and Simpsonite Chemical Formula

While comparing Pyromorphite and Simpsonite 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 Simpsonite chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.

Compare Green Gemstones

Pyromorphite Vs Sapphire

Pyromorphite Vs Rutilated Quartz

Pyromorphite Vs Sapphirine

Pyromorphite and Simpsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Simpsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Simpsonite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is Not Available whereas that of Simpsonite is Not Available.