Object Record

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Collection Speer Collection
Catalog Number 1999.0001.1287
Object Name Mano
'Iipay Aa Name hapiichaa
Description A fragmented hand-held grinding stone, also known as a mano in Southern California archaeology. This bifacial stone is used with one hand for grinding and is unshaped and somewhat shouldered by usewear. It is fire-affected. It is oval in shape. The stone material is quartzite with muscovite mica. There is some red staining, perhaps iron oxide leaching. It is fine grained.

This grinding or milling stone ventral side is polished, heavily used and broken. The grinding stone dorsal side is smooth with little use. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The perimeter sides have some usewear and the ends battered. The stone appears to be unpecked; pecking increases the grinding surface for greater traction.

Length - 3.500", Width - 3.070", Thickness - 2.125", Weight - 1.200 lbs

Provenance This artifact was found within the local San Diego County region, collected 1910-1950.
Date Late Prehistoric (1300-800 YA)
Material Quartzite
Culture Kumeyaay / DiegueƱo
Place of Origin San Diego County
Caption Mano, quartzite: ventral view, side A (polished and broken).