Alexandrite and Carletonite Physical Properties

Alexandrite

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

3.69-3.812.45

1 7.18

1.5 Fracture

Not Available

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

1,1 ; 3,2.

Perfect on {001}, good on {110}

1.7 Mohs Hardness

8.54-4.5

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Carletonite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Carletonite chemical formula.

Chemical formula of Alexandrite- BeAl ₂ O ₄
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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Alexandrite and Carletonite Specific Gravity

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