Afghanite and Celestine Physical Properties

Afghanite

Celestine

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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

2.55-2.653.90-4.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect {10 1 0}

Perfect on {001}, good on {210}, poor on {010}

1.7 Mohs Hardness

5.5-63-3.5

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)

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Celestine Chemical Formula

While comparing Afghanite and Celestine 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 Celestine 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 Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Afghanite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.