Langbeinite and Mimetite Physical Properties

Langbeinite

Mimetite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Slowly dissolves in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available7.10

1 7.18

1.5 Fracture

Conchoidal, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

[10 1 1] Imperfect

1.7 Mohs Hardness

3.5-43.5

2 10

1.8 Chemical Composition

Not Available

Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Langbeinite and Mimetite Chemical Formula

While comparing Langbeinite and Mimetite 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 Langbeinite and Mimetite chemical formula.

Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Langbeinite and Mimetite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Langbeinite and Mimetite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Langbeinite and Mimetite Optical Properties during the identification of gemstone. Specific gravity of Langbeinite is 7.10 whereas that of Mimetite is 7.10.