Phlogopite and Mimetite Physical Properties

Phlogopite

Mimetite

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.857.10

1 7.18

1.5 Fracture

None, Uneven

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect basal (001)

[10 1 1] Imperfect

1.7 Mohs Hardness

2-2.53.5

2 10

1.8 Chemical Composition

Not Available

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

Phlogopite and Mimetite Chemical Formula

While comparing Phlogopite 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 Phlogopite 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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Phlogopite and Mimetite Specific Gravity

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