Hematite and Dumortierite Physical Properties

Hematite

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

5.00-5.303.26-3.41

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

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

1.6 Cleavage

None, may show partings on {0001} and {10 1 1}

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

1.7 Mohs Hardness

67-8.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

AlAl₆O₃BSi₃O₁₈

Hematite and Dumortierite Chemical Formula

While comparing Hematite 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 Hematite and Dumortierite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Hematite and Dumortierite Specific Gravity

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