Andalusite and Crocoite Physical Properties

Andalusite

Crocoite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.05-3.21

Uneven, Subconchoidal, Splintery

Good on {110}, poor on {100}

7.5

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

5.90-6.10

Conchoidal

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

2.5-3

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

Andalusite and Crocoite Chemical Formula

While comparing Andalusite and Crocoite 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 Andalusite and Crocoite chemical formula.

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Andalusite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite Vs Crocoite during the identification of gemstone. Specific gravity of Andalusite is whereas that of Crocoite is .