Stichtite and Pyromorphite Physical Properties

Stichtite

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.11-2.206.5-7.1

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

Perfect on {0001}

Imperfect- [10 1 1]

1.7 Mohs Hardness

Not Available3.5-4

2 10

1.8 Chemical Composition

Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Stichtite and Pyromorphite Chemical Formula

While comparing Stichtite and Pyromorphite 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 Stichtite and Pyromorphite chemical formula.

Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)

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Stichtite and Pyromorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stichtite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stichtite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Stichtite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.