|'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 rectangular in shape. The stone material is a granitic (granite) with muscovite mica, pink feldspar and red weathering areas and an inclusion of dark stone on one end. It is medium grained.
This grinding or milling stone ventral side is worn and pitted. Its dorsal side is smoother. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Wear marks on the perimeter sides suggest some use. The stone appears to be pecked on the ventral and lesser on the dorsal surface; pecking increases the grinding surface for greater traction.
Length - 4.212", Width - 3.070", Height - 1.456", Weight - 1.247 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 (pecked working surface).|