Description: Naturally formed concretions found at Wupatki Pueblo and used for grinding pigments.

Dimensions: (left) 0.7H x 1.5diam cm (0.28 x 0.59 in); (right) 3.3H x 1.7W cm (1.3 x 0.67 in).

Collection: On display at Wupatki National Monument (catalog card 1, catalog card 2).

Author

Dan Boone/Ryan Belnap, Bilby Research Center, Northern Arizona University

File

Wupatki_20091123_279.jpg

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