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Prase Opal
Prase Opal

Mottramite
Mottramite



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Prase Opal
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Mottramite

Prase Opal and Mottramite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
Soluble

Durability

-
-

Specific Gravity

1.98-2.255.9
1 7.18
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Fracture

Conchoidal
Sub-Conchoidal

Cleavage

None
None observed

Mohs Hardness

5-6.53
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
PbCu(VO4)(OH)

Prase Opal and Mottramite Chemical Formula

While comparing Prase Opal 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 Prase Opal and Mottramite chemical formula.

  • Chemical formula of Prase Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Mottramite- PbCu(VO4)(OH)

Prase Opal and Mottramite Specific Gravity

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