Carletonite and Spinel Physical Properties

Carletonite

Spinel

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.453.64-3.66

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {001}, good on {110}

None, but may exhibit slight parting

1.7 Mohs Hardness

4-4.58

2 10

1.8 Chemical Composition

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

MgAl₂O₄

Carletonite and Spinel Chemical Formula

While comparing Carletonite and Spinel 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 Spinel 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 Spinel- MgAl₂O₄

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Carletonite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Carletonite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Carletonite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Carletonite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.