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Purpurite
Purpurite

Fire Opal
Fire Opal



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Purpurite
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Fire Opal

Purpurite and Fire Opal Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.2-3.41.97-2.22
Amber
1 7.18
1.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Conchoidal, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
[100] [001] perfect
Not Available
1.7 Mohs Hardness
4-4.56-6.5
Amber
2 10
1.8 Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Purpurite and Fire Opal Chemical Formula

While comparing Purpurite and Fire 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 Fire Opal chemical formula.

  • Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Purpurite and Fire Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.