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Shattuckite



Shattuckite

General
CategoryMineral
Chemical formulaCu5(SiO3)4(OH)2
Identification
ColorDark and light blue, turqoise
Cleavageperfect in two directions.
Fractureuneven
Mohs Scale hardness3.5
LusterDull to vitreous
Optical Propertiestranslucent to opaque
StreakBlue
Specific gravityapproximately 4.1 (rather heavy for a non-metallic mineral)

Shattuckite is a mineral, a copper silicate hydroxide with formula Cu5(SiO3)4(OH)2. It crystallizes in the orthorhombic - dipyramidal crystal system and usually occurs in a granular massive form and also as fibrous acicular crystals.

Additional recommended knowledge

Shattuckite is a relatively rare copper silicate mineral. It was first discovered in the copper mines of Bisbee, Arizona, specifically the Shattuck Mine (hence the name). It is a secondary mineral that forms from the alteration of other secondary minerals. At the Shattuck Mine, it forms pseudomorphs after malachite. A pseudomorph is an atom by atom replacement of a crystal structure by another crystal structure, but with little alteration of the outward shape of the original crystal.

References

  • Webmineral data
  • Mindat with location data
  • Mineral Data Publishing


 


 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Shattuckite". A list of authors is available in Wikipedia.
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