Afghanite and Hiddenite Physical Properties

Afghanite

Hiddenite

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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

2.55-2.653.15-3.21

1 7.18

1.5 Fracture

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

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Perfect {10 1 0}

1,2 prismatic

1.7 Mohs Hardness

5.5-66-7

2 10

1.8 Chemical Composition

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

LiAlSi₂O₆

Afghanite and Hiddenite Chemical Formula

While comparing Afghanite and Hiddenite 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 Hiddenite 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 Hiddenite- LiAlSi₂O₆

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Afghanite and Hiddenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Hiddenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Hiddenite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.15-3.21 whereas that of Hiddenite is 3.15-3.21.