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Oxford Clay (Jurassic) exposed near Weymouth, England.

Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces.

Clay minerals form in the presence of water<ref>http://www.clays.org/journal/archive/volume%201/1-1-19.pdf</ref> and have been important to life, and many theories of abiogenesis involve them. They have been useful to humans since ancient times in agriculture and manufacturing.


Clay minerals sections
Intro   Properties    Occurrence    Classification   History  Structure  See also  References  

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Oxford Clay (Jurassic) exposed near Weymouth, England.

Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations found on or near some planetary surfaces.

Clay minerals form in the presence of water<ref>http://www.clays.org/journal/archive/volume%201/1-1-19.pdf</ref> and have been important to life, and many theories of abiogenesis involve them. They have been useful to humans since ancient times in agriculture and manufacturing.


Clay minerals sections
Intro   Properties    Occurrence    Classification   History  Structure  See also  References  

PREVIOUS: IntroNEXT: Properties
<<>>