Crocoite and Labradorite Physical Properties

Crocoite

Labradorite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

5.90-6.102.69-2.72

1 7.18

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Fracture

Conchoidal

Uneven, Conchoidal

Cleavage

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

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

Mohs Hardness

2.5-36-6.5

2 10

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Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Crocoite and Labradorite Chemical Formula

While comparing Crocoite and Labradorite 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 Labradorite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Crocoite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.