|'Iipay Aa Name||hapiichaa|
A whole hand-held grinding stone, also known as a mano, in Southern California archaeology. This stone is bifacial and shaped. It is circular in shape. The stone material is a sandstone (sedimentary) with muscovite mica. It is coarse grained and vesicular or full of holes.
This grinding or milling stone ventral side is light colored and saddle-shaped. Its dorsal side is dark, oily, polished, and flat. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Worn marks on the roughened areas of the perimeter sides suggest grinding. The stone appears to be pecked on the perimeter and both surfaces, however it is due to the quality of the stone with natural holes; pecking increases the grinding surface for greater traction.
Length - 4.724", Width - 4.488", Height - 1.968", Weight - 2.249 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, sandstone: ventral view, side A; polished, shouldered working surface|