Crocoite and Afghanite Physical Properties

Crocoite

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

5.90-6.102.55-2.65

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

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

1.6 Cleavage

{110} Distinct, {001} Indistinct, {100} Indistinct

Perfect {10 1 0}

1.7 Mohs Hardness

2.5-35.5-6

2 10

1.8 Chemical Composition

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

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

Crocoite and Afghanite Chemical Formula

While comparing Crocoite 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 Crocoite and Afghanite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) 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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Crocoite and Afghanite Specific Gravity

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