Carletonite and Cordierite Iolite Physical Properties

Carletonite

Cordierite Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.452.56-2.66

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Perfect on {001}, good on {110}

Not Available

1.7 Mohs Hardness

4-4.57-7.5

2 10

1.8 Chemical Composition

KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Carletonite and Cordierite Iolite Chemical Formula

While comparing Carletonite and Cordierite Iolite 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 Carletonite and Cordierite Iolite chemical formula.

Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Carletonite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carletonite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carletonite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Carletonite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.