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Bertrandite



  Bertrandite is a beryllium sorosilicate hydroxide mineral with composition: Be4Si2O7(OH)2. Bertrandite is a colorless to pale yellow orthorhombic mineral with a hardness of 6-7. It is commonly found in beryllium rich pegmatites and is in part an alteration of beryl. Bertrandite often occurs as a pseudomorphic replacement of beryl. It, with beryl, are ores of beryllium.

Additional recommended knowledge

It was discovered near Nantes, France in 1883 and named for the French mineralogist, Léon Bertrand.

See also

References

  • Mineral galleries
  • Mindat
  • Webmineral
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Bertrandite". A list of authors is available in Wikipedia.
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