Datolite and Pyromorphite Physical Properties

Datolite

Pyromorphite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.006.5-7.1

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

Uneven, ConchoidalArthur Thomas, Brittle, Metallic

1.6 Cleavage

None

Imperfect- [10 1 1]

1.7 Mohs Hardness

5-5.53.5-4

2 10

1.8 Chemical Composition

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Datolite and Pyromorphite Chemical Formula

While comparing Datolite 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 Datolite and Pyromorphite chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael 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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Datolite and Pyromorphite Specific Gravity

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