Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1187
Object Name Mano
'Iipay Aa Name hapiichaa
Description A whole hand-held grinding stone, also known as a mano in Southern California archaeology. This bifacial stone is used with one hand for grinding and was shaped in construction. It is oval in shape. The stone is fire affected. The material is an arkosic sandstone with feldspar, muscovite mica, and garnets. It is coarse-grained and angular to sub rounded.

This grinding or milling stone's ventral side is heavily used and stained with a crack that extends from the center left to the perimeter side. This grinding stone's dorsal side is smooth with a white residue. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Worn marks are on the perimeter sides. The stone appears to be lightly pecked; pecking increases the grinding surface for greater traction.

Dimensions:
Length - 4.015", Width - 3.228", Height - 1.889", Weight - 1.4 lbs.
Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)LP
Material Arkosic Sandstone
Culture Kumeyaay / DiegueƱo
Place of Origin CA
Caption Dorsal view