Tigers Eye and Afghanite Physical Properties

Tigers Eye

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

2.58-2.64

2.55-2.65

1.5 Fracture

Gems, Sixth Edition (2006)

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

1.6 Cleavage

Indiscernible

Perfect {10 1 0}

1.7 Mohs Hardness

6.5-7

5.5-6

1.8 Chemical Composition

SiO₂

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

Tigers Eye and Afghanite Chemical Formula

While comparing Tigers Eye 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 Tigers Eye and Afghanite chemical formula.

Chemical formula of Tigers Eye- SiO₂
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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Tigers Eye and Afghanite Specific Gravity

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