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Mimetite
Mimetite

Herderite
Herderite



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Mimetite
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Herderite

Mimetite and Herderite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

7.102.90-3.02
1 7.18
👆🏻

Fracture

Conchoidal
Subconchoidal, Conchoidal

Cleavage

[10 1 1] Imperfect
Indistinct on {110}

Mohs Hardness

3.55-5.5
2 10
👆🏻

Chemical Composition

Pb 5(AsO 4) 3ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Mimetite and Herderite Chemical Formula

While comparing Mimetite and Herderite 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 Herderite chemical formula.

  • Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Mimetite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mimetite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mimetite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Mimetite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.