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Mottramite
Mottramite

Kainite
Kainite



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Mottramite
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Kainite

Mottramite and Kainite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
Soluble

Durability

-
-

Specific Gravity

5.92.15
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Splintery, Conchoidal

Cleavage

None observed
{001}, perfect

Mohs Hardness

32.5-3
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
KMg(SO4)Cl

Mottramite and Kainite Chemical Formula

While comparing Mottramite and Kainite 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 Kainite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Kainite- KMg(SO4)Cl

Mottramite and Kainite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Kainite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Kainite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 2.15 whereas that of Kainite is 2.15.