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Purpurite
Purpurite

Barite
Barite



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Purpurite
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Purpurite and Barite Physical Properties

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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
3.2-3.4
4.48
1.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Uneven
1.6 Cleavage
[100] [001] perfect
{010} Perfect, {210} Perfect, {010} Imperfect
1.7 Mohs Hardness
4-4.5
3-3.5
1.8 Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
BaSO4

Purpurite and Barite Chemical Formula

While comparing Purpurite and Barite 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 Barite chemical formula.

  • Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Barite- BaSO4

Purpurite and Barite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Barite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Barite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 4.48 whereas that of Barite is 4.48.