Purpurite and Ajoite Physical Properties

Purpurite

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.42.96

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

Not Available

1.6 Cleavage

[100] [001] perfect

Perfect on {010}

1.7 Mohs Hardness

4-4.55

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Purpurite and Ajoite Chemical Formula

While comparing Purpurite and Ajoite 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 Ajoite chemical formula.

Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Purpurite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Purpurite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 2.96 whereas that of Ajoite is 2.96.