|'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 rectangular in shape. The stone material is a granitic (granite) with muscovite mica and inclusions of pink feldspar. It is coarse grained.
This grinding or milling stone ventral and dorsal sides are smooth and polished. It may actually have been used as a polishing rock due to its size and the pattern of wear. The dorsal side is very dark and perhaps stained. Vertical striations appearing on the surfaces suggest that this mano was used in an undulating or back and forth movement. Usewear and rough marks on the perimeter sides suggest grinding and are perhaps pecked. Pecking increases the grinding surface for greater traction.
Length - 3.346", Width - 2.874", Height - 1.968", Weight - 1.119 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 (polished surface; pecked perimeter)|