Mimetite and Bertrandite Physical Properties

Mimetite

Bertrandite

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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

7.102.59-2.60

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

[10 1 1] Imperfect

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

3.56-7

2 10

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Mimetite and Bertrandite Chemical Formula

While comparing Mimetite and Bertrandite 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 Mimetite and Bertrandite chemical formula.

Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Mimetite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mimetite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mimetite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Mimetite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.