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- Joseph (Joe) Anthony Mandarino OC, FRSC (20 April 1929 in Chicago, Illinois – 19 September 2007) was an American-Canadian mineralogist and crystallographer...9 KB (1,035 words) - 02:44, 28 May 2023
- Argillic alteration is hydrothermal alteration[citation needed] of wall rock which introduces clay minerals including kaolinite, smectite and illite. The...1 KB (155 words) - 18:08, 14 March 2021