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Mottramite
Mottramite

Kurnakovite
Kurnakovite



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Mottramite
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Kurnakovite

Mottramite and Kurnakovite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
Soluble

Durability

-
-

Specific Gravity

5.91.847-1.852
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Conchoidal

Cleavage

None observed
Poor to indistinct on {010}

Mohs Hardness

32-3
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Ca3Al3(SiO4)3(OH)

Mottramite and Kurnakovite Chemical Formula

While comparing Mottramite and Kurnakovite 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 Kurnakovite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Kurnakovite- Ca3Al3(SiO4)3(OH)

Mottramite and Kurnakovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Kurnakovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Kurnakovite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 1.847-1.852 whereas that of Kurnakovite is 1.847-1.852.