Ajoite and Purpurite Physical Properties

Ajoite

Purpurite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Decomposed by acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.963.2-3.4

1 7.18

1.5 Fracture

Not Available

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {010}

[100] [001] perfect

1.7 Mohs Hardness

54-4.5

2 10

1.8 Chemical Composition

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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

Ajoite and Purpurite Chemical Formula

While comparing Ajoite 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 Ajoite and Purpurite chemical formula.

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

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Ajoite and Purpurite Specific Gravity

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