Formed in marine waters, a minor component of green clay infillings or replacements of microtests, bioclasts, fecal pellets, of mineral debris on shallow marine shelfs and lagoonal areas in tropical latitudes.
Approved IMA 1988
Minor component in sediments of the present day sea bottoms in lower latitudes near South America and Africa. Link to MinDat.org Location Data.
Named for Gilles Serge Odin, clay mineralogist of the University P. And M. Curie, Paris, France.