Crocoite and Dumortierite Physical Properties

Crocoite

Dumortierite

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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

5.90-6.103.26-3.41

1 7.18

1.5 Fracture

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

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

2.5-37-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Crocoite and Dumortierite Chemical Formula

While comparing Crocoite and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Crocoite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crocoite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crocoite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Crocoite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.