|'Iipay Aa Name||hapiichaa|
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. It was shaped in construction; it is shouldered by usewear. It is square in shape. The light-colored stone material is a granitic with heavy muscovite mica and inclusions of hornblende. It is medium grained.
This grinding or milling stone's ventral side is flat and smooth with some pecking. Its dorsal side is flat and smooth. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The two perimeter sides are rough and the ends are smoothed with grinding polish. The stone appears to be pecked on the ends and ventral surfaces; pecking increases the grinding surface for greater traction.
Length - 3.9", Width - 3.35", Thickness - 1.96", Weight - 1.8 lbs.
|Provenance||This artifact was found within the local San Diego County region, collected 1910-1950.|
|Date||Late Prehistoric (1300-800 YA)|
|Culture||Kumeyaay / Diegueño|
|Place of Origin||San Diego County|
|Caption||Mano, granitic: ventral view, side A (smooth polish and pecking).|