Andradite Garnet and Afghanite Physical Properties

Andradite Garnet

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

3.8-3.9

2.55-2.65

1.5 Fracture

Not Available

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

1.6 Cleavage

None

Perfect {10 1 0}

1.7 Mohs Hardness

6.5-7.5

5.5-6

1.8 Chemical Composition

Ca₃Fe³⁺₂Si₃O₁₂

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

Andradite Garnet and Afghanite Chemical Formula

While comparing Andradite Garnet 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 Andradite Garnet and Afghanite chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
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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Andradite Garnet and Afghanite Specific Gravity

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