Goethite and Hemimorphite Physical Properties

Goethite

Hemimorphite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

HCl soluble

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.27-4.293.30-3.50

1 7.18

1.5 Fracture

Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).

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

1.6 Cleavage

Perfect {010}

Perfect on {110}, poor on {101}, {001} rare

1.7 Mohs Hardness

5-5.55

2 10

1.8 Chemical Composition

FeO(OH)Arthur Thomas , Gemstones (2009)

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Goethite and Hemimorphite Chemical Formula

While comparing Goethite and Hemimorphite 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 Hemimorphite chemical formula.

Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Brown Gemstones

Goethite Vs Jacobsite

Goethite Vs Jadeite

Goethite Vs Kyanite Cyprine

Goethite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.