Conchomancy, a form of geomancy is the art of divination by casting shells.


From ancient Greek konche muscle, cockle, shell.


Cauris or Cypraea moneta are small shells that are the oldest known currency in China but also in Western Africa. Today, they are used for divination in many countries of Western and Central Africa such as Mali, Guinea, Senegal.

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Earth Divination: Earth Magic: Practical Guide to Geomancy - John Michael Greer
Divination for Beginners: Reading the Past, Present & Future -Scott Cunningham