|'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 and was shaped in construction; it is shouldered by usewear. It is square in shape. The stone material is a granitic with gold (weathered biotite) mica. It is medium grained.
This grinding or milling stone's ventral side is flattened, polished and pecked. Its dorsal side is rounded and pecked, some polish on about half of the surface. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The perimeter sides and ends are shouldered and two ends appear to have polish and grinding. The stone appears to be pecked on the grinding surfaces; pecking increases the grinding surface for greater traction. The surface is lightly exfoliating and crumbling.
Length - 3.346", Width - 3.425", Thickness - 2.125", Weight - 1.551 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 (some polish and pecking)|