|'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 rectangular in shape. The stone material is quartzite with biotite mica. It is fine grained. The reddish cortex is worn away in areas leaving a gray stone.
This grinding or milling stone ventral side is polished and pecked with use. Its dorsal side is polished and shouldered. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Wear marks on the perimeter indicate battering on the ends and grinding on one side. The stone appears to be pecked on the ventral and end surfaces; pecking increases the grinding surface for greater traction.
Length - 4.370", Width - 3.110", Height - 2.125", Weight - 1.685 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, quartzite: ventral view, side A (pecked working surface).|