Afghanite and Stolzite Physical Properties

Afghanite

Stolzite

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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

1.5 Fracture

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

Conchoidal, Uneven, Brittle

1.6 Cleavage

Perfect {10 1 0}

Imperfect on {001}, indistinct on {011}

1.7 Mohs Hardness

5.5-6

2.5-3

1.8 Chemical Composition

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

Not Available

Afghanite and Stolzite Chemical Formula

While comparing Afghanite and Stolzite 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 Stolzite 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)

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Afghanite and Stolzite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Stolzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Stolzite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2 whereas that of Stolzite is 2.