Tourmaline and Scapolite Physical Properties

Tourmaline

Scapolite

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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

2.85-3.352.58-2.74

1 7.18

1.10 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery

1.11 Cleavage

Indistinct

{100} Distinct, {110} Distinct

1.12 Mohs Hardness

7-7.55.5-6

2 10

1.14 Chemical Composition

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

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Tourmaline and Scapolite Chemical Formula

While comparing Tourmaline and Scapolite 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 Tourmaline and Scapolite chemical formula.

Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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Tourmaline and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tourmaline and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.