Chrome Tourmaline and Purpurite Physical Properties

Chrome Tourmaline

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

2.85-3.353.2-3.4

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

3,2

[100] [001] perfect

1.7 Mohs Hardness

7-7.54-4.5

2 10

1.8 Chemical Composition

Tourmaline is a series of several different minerals with unique chemical formulas.

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

Chrome Tourmaline and Purpurite Chemical Formula

While comparing Chrome Tourmaline 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 Chrome Tourmaline and Purpurite chemical formula.

Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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Chrome Tourmaline and Purpurite Specific Gravity

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