Zoisite and Crocoite Physical Properties

Zoisite

Crocoite

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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

3.20-3.505.90-6.10

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even

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

1.6 Cleavage

Perfect {010} imperfect {100}

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

1.7 Mohs Hardness

6-72.5-3

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Zoisite and Crocoite Chemical Formula

While comparing Zoisite 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 Zoisite and Crocoite chemical formula.

Chemical formula of Zoisite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Zoisite and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zoisite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.