Clinozoisite and Dumortierite Physical Properties

Clinozoisite

Dumortierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.383.26-3.41

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

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

1.6 Cleavage

Perfect on {001}

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

1.7 Mohs Hardness

6-77-8.5

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

AlAl₆O₃BSi₃O₁₈

Clinozoisite and Dumortierite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Dumortierite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Clinozoisite and Dumortierite Specific Gravity

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