Microlite and Goethite Physical Properties

Microlite

Goethite

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Physical Properties

Tenacity

Solubility

HCl soluble

Durability

Specific Gravity

5.54.27-4.29

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

{111} Indistinct, {111} Indistinct, {111} Indistinct

Perfect {010}

Mohs Hardness

5-5.55-5.5

2 10

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Chemical Composition

(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

FeO(OH)Arthur Thomas , Gemstones (2009)

Microlite and Goethite Chemical Formula

While comparing Microlite and Goethite 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 Microlite and Goethite chemical formula.

Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)

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Microlite and Goethite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Microlite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microlite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Microlite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.