Hematite and Danburite Physical Properties

Hematite

Danburite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.302.97-3.03

1 7.18

1.5 Fracture

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

1.6 Cleavage

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

{001} Poor

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hematite and Danburite Chemical Formula

While comparing Hematite and Danburite 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 Danburite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hematite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Danburite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.97-3.03 whereas that of Danburite is 2.97-3.03.