Rutile and Herderite Physical Properties

Rutile

Herderite

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Physical Properties

Tenacity

Solubility

Insoluble in acids

Durability

Specific Gravity

4.20-4.302.90-3.02

1 7.18

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Fracture

Uneven, Conchoidal

Subconchoidal, Conchoidal

Cleavage

{110} good, 100 moderate, parting on {092} and {011}

Indistinct on {110}

Mohs Hardness

6-6.55-5.5

2 10

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Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Rutile and Herderite Chemical Formula

While comparing Rutile 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 Rutile and Herderite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Rutile and Herderite Specific Gravity

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