|'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 oval in shape. The stone is fire affected. The material is an arkosic sandstone with feldspar, muscovite mica, and garnets. It is coarse-grained and angular to sub rounded.
This grinding or milling stone's ventral side is heavily used and stained with a crack that extends from the center left to the perimeter side. This grinding stone's dorsal side is smooth with a white residue. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Worn marks are on the perimeter sides. The stone appears to be lightly pecked; pecking increases the grinding surface for greater traction.
Length - 4.015", Width - 3.228", Height - 1.889", Weight - 1.4 lbs.
|Provenance||This artifact was found within the local San Diego County region, collected 1910-1950.|
|Date||Late Prehistoric (1300-800 YA)LP|
|Culture||Kumeyaay / Diegueño|
|Place of Origin||CA|