|'Iipay Aa Name||hapiichaa|
A whole hand-held grinding stone, also known as a mano in Southern California archaeology. It has shouldering from usewear. This stone is bifacial and shaped. It is oval in shape. The stone material is a quartzite (metamorphosed sandstone) with muscovite mica and areas of red weathering. It is fine grained.
This grinding or milling stone ventral and dorsal sides each have polished cortex. Striations appearing on the surface suggest that this mano was used in an undulating or back and forth movement. Wear marks on the sides suggest an interesting example of a mano that was likely paired with a deepening basin in the metate. The ventral side is flat and shouldered from grinding. The dorsal side extends to a ventral corner with a sloped edge. Construction of the stone created a textured surface on the sides. The stone appears to be pecked on the ends; pecking increases the grinding surface for greater traction.
Length - 3.976", Width - 3.031", Height - 1.968", Weight - 1.420 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, quartzite: ventral view, side A (polished shouldered working surface)|