GUEST: I bought them off of a couple from Southern Minnesota. APPRAISER: These come from an area in southern Minnesota called a pipestone quarry. This would date to about 1880, 1890 and this one is ...

Using X-ray diffraction and spectroscopic analysis, Thomas Emerson, an archaeologist, and Randall Hughes, a geologist, have discovered that most of the red stone fragments found at Cahokia are not ...

This June 5, 2013 photo shows fourth-generation pipe maker Travis Erickson holding a piece of catlinite _ a sheet of stone _ that he will carve into a traditional Native American pipe at Pipestone ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. From card: "Catlinite bowl; flat wood ...

Appraisal: Sioux Indian Catlinite Pipes, ca. 1875, from Bismarck, Hour 3. Check out John A. Buxton's appraisal of 1875 Sioux Indian Catlinite Pipes, in Bismarck, Hour 3.