Afghanite and Hexagonite Physical Properties

Afghanite

Hexagonite

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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

2.55-2.65

2.98-3.03

1.5 Fracture

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

Uneven

1.6 Cleavage

Perfect {10 1 0}

[110] perfect; [010] distinct

1.7 Mohs Hardness

5.5-6

5-6

1.8 Chemical Composition

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

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Afghanite and Hexagonite Chemical Formula

While comparing Afghanite and Hexagonite 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 Hexagonite 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 Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Afghanite and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.