Iolite and Scapolite Physical Properties

Iolite

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

2.6-2.72.58-2.74

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

{100} Distinct, {110} Distinct

1.7 Mohs Hardness

7-7.55.5-6

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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

Iolite and Scapolite Chemical Formula

While comparing Iolite 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 Iolite and Scapolite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
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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Iolite and Scapolite Specific Gravity

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