|'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 a granitic with gold (weathered biotite) mica. It is coarse grained.
This grinding or milling stone's ventral side is smooth and polished with some pecking. There is a small loss at one end. Its dorsal side is also polished with some pecking. The surface is obscured by a large area of white staining that appears to be caliche (calcium carbonate). This area extends over most of the dorsal side and down one side. There is also a rusted area exuding above the white area. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The perimeter sides and ends have some associated usewear. The stone appears to be lightly pecked on the grinding surfaces; pecking increases the grinding surface for greater traction.
Length - 4.4", Width - 3.4", Depth - 2.2", Weight - 2.1 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|