catlinite

From Catlin +‎ -ite, after George Catlin, an American painter who travelled in the region.

catlinite (countable and uncountable, plural catlinites)

1. A brownish-red red clay found in Northern USA and Canada, used by the American Indians to make pipes.

   Synonym: pipestone

• “catlinite”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.