quartzite

Depicting Amenhotep in the style of Osiris, the statues stood 26 feet high and were carved from a single block of quartzite sandstone that came from hundreds of miles away.

The rocks comprised weathered schists, quartzite, and granite—the last only in detached blocks.

The most elevated rock, in place, on the sources of the Mississippi, is found to be quartzite.

Large, biface, quartzite tools are in association with the points, which are all made from quartzite.

Much of the flint and quartzite used at the Camp Creek Site has poor flaking qualities, resulting in a poorly manufactured point.

Of the nine measured examples, seven are made of black to gray local flint, one is quartzite and one chalcedony.