The Antigorite reference article from the English Wikipedia on 24-Jul-2004
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Antigorite

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Antigorite is a monoclinic mineral from the kaolinite-serpentine group. It is a polymorph of clinochrysotile, lizardite, orthochrysotile and parachrysotile. It was first described and got its name from the Antigorio valley, Novara province, Piedmont, Italy.

See also: List of minerals