Pyromorphite and Gahnospinel Physical Properties

Pyromorphite

Gahnospinel

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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

6.5-7.13.65-4.55

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Imperfect- [10 1 1]

None, but may exhibit slight parting

1.7 Mohs Hardness

3.5-47.5-8

2 10

1.8 Chemical Composition

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

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Pyromorphite and Gahnospinel Chemical Formula

While comparing Pyromorphite and Gahnospinel 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 Gahnospinel chemical formula.

Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Pyromorphite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyromorphite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.