Afghanite and Aegirine Physical Properties

Afghanite

Aegirine

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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

2.55-2.653.50-3.60

1 7.18

1.13 Fracture

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

Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

1.14 Cleavage

Perfect {10 1 0}

Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}

1.15 Mohs Hardness

5.5-66

2 10

1.16 Chemical Composition

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

(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

Afghanite and Aegirine Chemical Formula

While comparing Afghanite and Aegirine 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 Afghanite and Aegirine chemical formula.

Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.

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Afghanite and Aegirine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Aegirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Aegirine Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.50-3.60 whereas that of Aegirine is 3.50-3.60.