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Mottramite
Mottramite

Linarite
Linarite



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Mottramite
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Linarite

Mottramite and Linarite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.95.35
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Conchoidal

Cleavage

None observed
Perfect on {100}, imperfect on {001}

Mohs Hardness

32.5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
PbCu(SO 4)(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Mottramite and Linarite Chemical Formula

While comparing Mottramite and Linarite 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 Mottramite and Linarite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Mottramite and Linarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Linarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Linarite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 5.35 whereas that of Linarite is 5.35.