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Goethite
Goethite

Wulfenite
Wulfenite



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Goethite
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Wulfenite

Goethite and Wulfenite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

HCl soluble
-

Durability

-
-

Specific Gravity

4.27-4.296.50-7.00
1 7.18
👆🏻

Fracture

Uneven
Irregular, Conchoidal

Cleavage

Perfect {010}
On {011}, distinct; on {001}, {013}, indistinct

Mohs Hardness

5-5.53
2 10
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Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)
PbMoO 4Walter Schumann , Gemstones of the world (2001)

Goethite and Wulfenite Chemical Formula

While comparing Goethite and Wulfenite 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 Goethite and Wulfenite chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

Goethite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.