Andalusite and Carletonite Physical Properties

Andalusite

Carletonite

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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

3.05-3.212.45

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Good on {110}, poor on {100}

Perfect on {001}, good on {110}

1.7 Mohs Hardness

7.54-4.5

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Andalusite and Carletonite Chemical Formula

While comparing Andalusite and Carletonite 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 Andalusite and Carletonite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Andalusite and Carletonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Carletonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Carletonite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.45 whereas that of Carletonite is 2.45.