Purpurite and Cryolite Physical Properties

Purpurite

Cryolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.42.97

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

Uneven

1.6 Cleavage

[100] [001] perfect

None observed

1.7 Mohs Hardness

4-4.52.5

2 10

1.8 Chemical Composition

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

Na 3AlF 6Ulrich Henn and Claudio C.

Purpurite and Cryolite Chemical Formula

While comparing Purpurite and Cryolite 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 Cryolite chemical formula.

Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Purpurite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 2.97 whereas that of Cryolite is 2.97.