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Mottramite
Mottramite

Apophyllite
Apophyllite



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Mottramite
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Apophyllite

Mottramite and Apophyllite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.92.30-2.50
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Uneven

Cleavage

None observed
Perfect on (001)

Mohs Hardness

34.5-5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Mottramite and Apophyllite Chemical Formula

While comparing Mottramite and Apophyllite 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 Apophyllite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Mottramite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.