|'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 or two hands for grinding and was shaped in construction. It is circular in shape. The stone material is sandstone derived in situ from tonalite, with biotite and muscovite mica, quartz. It is coarse grained and sub rounded with characteristic pinkish weathering.
This grinding or milling stone's ventral side is heavily pecked and flattened. Its dorsal side is smooth and stained. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. The stone is pecked; pecking increases the grinding surface for greater traction.
Length - 4.409 ", Width - 3.858", Height/Thickness - 2.204", Weight - 2.410 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||CA|