Iolite and Linarite Physical Properties

Iolite

Linarite

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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

2.6-2.75.35

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

3,1

Perfect on {100}, imperfect on {001}

1.7 Mohs Hardness

7-7.52.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Iolite and Linarite Chemical Formula

While comparing Iolite and Linarite 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 Linarite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Iolite and Linarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Linarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Linarite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 5.35 whereas that of Linarite is 5.35.