Crocoite and Tanzanite Physical Properties

Crocoite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

5.90-6.103.35

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

2.5-36.5-7

2 10

1.8 Chemical Composition

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

Ca₂Al₃(SiO₄)₃(OH)

Crocoite and Tanzanite Chemical Formula

While comparing Crocoite and Tanzanite 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 Tanzanite chemical formula.

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

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Crocoite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 3.35 whereas that of Tanzanite is 3.35.