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Purpurite
Purpurite

Precious Opal
Precious Opal



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Purpurite
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Precious Opal

Purpurite and Precious Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.2-3.4
Uneven
[100] [001] perfect
4-4.5
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)

Purpurite and Precious Opal Chemical Formula

While comparing Purpurite and Precious Opal 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 Purpurite and Precious Opal chemical formula.

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Purpurite and Precious Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Precious Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite Vs Precious Opal during the identification of gemstone. Specific gravity of Purpurite is whereas that of Precious Opal is .