Hematite and Herderite Physical Properties

Hematite

Herderite

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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

5.00-5.302.90-3.02

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

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

Indistinct on {110}

1.7 Mohs Hardness

65-5.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Hematite and Herderite Chemical Formula

While comparing Hematite and Herderite 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 Herderite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Hematite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.