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DickiteDickite is a phyllosilicate clay mineral, with the same composition as kaolinite, nacrite, and halloysite, but with a different crystal structure (polymorph). Additional recommended knowledgeIts chemical composition is Al2Si2O5(OH)4. It occurs with other clays and requires x-ray diffraction for its positive identification. Dickite is an important alteration indicator in hydrothermal systems as well as occurring in soils and shales. It takes its name from Allan Brugh Dick (1833-1926), the Scottish metallurgical chemist who first described it. See alsoReferences
Categories: Phyllosilicates | Aluminium minerals | Hydroxide minerals |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dickite". A list of authors is available in Wikipedia. |