Pyrope Almandine and Purpurite Physical Properties

Pyrope Almandine

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

3.62-4.203.2-3.4

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

[100] [001] perfect

1.7 Mohs Hardness

7-7.54-4.5

2 10

1.8 Chemical Composition

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

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

Pyrope Almandine and Purpurite Chemical Formula

While comparing Pyrope Almandine 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 Pyrope Almandine and Purpurite chemical formula.

Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Pyrope Almandine and Purpurite Specific Gravity

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