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Mottramite
Mottramite

Crocoite
Crocoite



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Mottramite
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Crocoite

Mottramite and Crocoite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.95.90-6.10
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Conchoidal

Cleavage

None observed
{110} Distinct, {001} Indistinct, {100} Indistinct

Mohs Hardness

32.5-3
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Mottramite and Crocoite Chemical Formula

While comparing Mottramite and Crocoite 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 Crocoite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Crocoite- PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Mottramite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.