Pyroxmangite and Purpurite Physical Properties

Pyroxmangite

Purpurite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.76-3.773.2-3.4

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{110} Perfect, {110} Perfect

[100] [001] perfect

1.7 Mohs Hardness

5-64-4.5

2 10

1.8 Chemical Composition

(Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Pyroxmangite and Purpurite Chemical Formula

While comparing Pyroxmangite and Purpurite 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 Pyroxmangite and Purpurite chemical formula.

Chemical formula of Pyroxmangite- (Fe,Mn) 7Si 7O 21Ulrich Henn and Claudio C.
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Pyroxmangite and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyroxmangite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyroxmangite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Pyroxmangite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.