Aquamarine and Afghanite Physical Properties

Aquamarine

Afghanite

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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

2.66-2.802.55-2.65

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle

1.6 Cleavage

3,1 basal

Perfect {10 1 0}

1.7 Mohs Hardness

7.5-85.5-6

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Aquamarine and Afghanite Chemical Formula

While comparing Aquamarine and Afghanite 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 Aquamarine and Afghanite chemical formula.

Chemical formula of Aquamarine- Be₃Al₂SiO₆
Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

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Aquamarine and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aquamarine and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aquamarine and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Aquamarine is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.