Iolite and Smoky Quartz Physical Properties

Iolite

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.7

2.65

1.5 Fracture

Not Available

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

3,1

{0110} Indistinct

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

SiO₂

Iolite and Smoky Quartz Chemical Formula

While comparing Iolite and Smoky Quartz 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 Smoky Quartz chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Smoky Quartz- SiO₂

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Iolite and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.65 whereas that of Smoky Quartz is 2.65.