Pumpellyite and Tourmaline Physical Properties

Pumpellyite

Tourmaline

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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

3.20-3.302.85-3.35

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Not Available

Indistinct

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Pumpellyite and Tourmaline Chemical Formula

While comparing Pumpellyite and Tourmaline 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 Pumpellyite and Tourmaline chemical formula.

Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Pumpellyite Vs Rubellite

Pumpellyite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pumpellyite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pumpellyite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Pumpellyite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.