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Crocoite
Crocoite

Mottramite
Mottramite



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Crocoite
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Mottramite

Crocoite and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

5.90-6.105.9
1 7.18
👆🏻

Fracture

Conchoidal
Sub-Conchoidal

Cleavage

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

Mohs Hardness

2.5-33
2 10
👆🏻

Chemical Composition

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

Crocoite and Mottramite Chemical Formula

While comparing Crocoite and Mottramite 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 Crocoite and Mottramite chemical formula.

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

Crocoite and Mottramite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 5.9 whereas that of Mottramite is 5.9.