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Mottramite
Mottramite

Prehnite
Prehnite



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Mottramite
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Prehnite

Mottramite and Prehnite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

5.92.80-2.95
1 7.18
👆🏻

Fracture

Sub-Conchoidal
Uneven

Cleavage

None observed
Distinct on [001]

Mohs Hardness

36-6.5
2 10
👆🏻

Chemical Composition

PbCu(VO4)(OH)
Ca2Al2Si3O12(OH)

Mottramite and Prehnite Chemical Formula

While comparing Mottramite and Prehnite 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 Prehnite chemical formula.

  • Chemical formula of Mottramite- PbCu(VO4)(OH)
  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)

Mottramite and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.