|'Iipay Aa Name||hapiichaa|
A whole hand-held grinding stone, also known as a mano in Southern California archaeology. This oval, bifacial stone is used with one hand for grinding and was shaped. The material is granitic with muscovite mica and feldspar and biotite. It is medium grained.
This grinding or milling stone ventral side is rough and pitted. 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. Wear marks on the perimeter sides suggest use. The stone appears to be pecked on the ventral and perimeter surfaces; pecking increases the grinding surface for greater traction.
Length - 4.409", Width - 3.346", Height - 1.850", Weight - 1.740 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).|