Purpurite and Verdelite Physical Properties

Purpurite

Verdelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.2-3.4

Uneven

[100] [001] perfect

4-4.5

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

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Purpurite and Verdelite Chemical Formula

While comparing Purpurite and Verdelite 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 Verdelite chemical formula.

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Purpurite and Verdelite Specific Gravity

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