Strontianite and Afghanite Physical Properties

Strontianite

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

3.63-3.792.55-2.65

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{110} Good

Perfect {10 1 0}

1.7 Mohs Hardness

3.55.5-6

2 10

1.8 Chemical Composition

SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

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

Strontianite and Afghanite Chemical Formula

While comparing Strontianite 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 Strontianite and Afghanite chemical formula.

Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
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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Strontianite and Afghanite Specific Gravity

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