Mg3Si2O5(OH)4
Hexagonal
Lizardite, a magnesium silicate hydroxide mineral of the serpentine group, occurs at Franklin as dark brown vein material, associated with chamosite, franklinphilite, clinochlore, aegirine, and other species; lizardite may occur at Sterling Hill as well. Bayliss (1981) informally suggested that baumite is lizardite-1T, but baumite was restudied in a subsequent, thorough, and formal discreditation by Guggenheim and Bailey (1989, 1990), who provided additional and correct information on the occurrence of lizardite in now-discredited baumite (Frondel and Ito, 1975).
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