Hematite and Epidote Physical Properties

Hematite

Epidote

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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

5.00-5.303.25-3.50

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

{001} perfect and {100} imperfect

1.7 Mohs Hardness

66-7

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hematite and Epidote Chemical Formula

While comparing Hematite and Epidote 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 Epidote chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hematite and Epidote Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Epidote Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Epidote Optical Properties during the identification of gemstone. Specific gravity of Hematite is 3.25-3.50 whereas that of Epidote is 3.25-3.50.