Lithic core

The core is the starting piece ( crafted blank piece ) for producing severed stone artifacts during the Stone Age and more recent periods of history (for indigenous peoples North and Central America to the Early Modern Period).

The blank consists of amorphous or crypto- crystalline rock ( chalcedony, flint, jasper, chert, limestone, quartz, quartzite, quartz, rhyolite or obsidian, etc.), creating a most muscheliger fracture ( brittle fracture ) occurs with typical stroke characteristics.

Rock, was separated from the at least one tee in brittle fracture is thus a core. A typical feature is the concave surface ( negative ), which arises after cleavage. Scheduled scale cores have at least one face, ie, the area in which the impact of stone or flail ( from antler, bone or ivory) or bouncing the Punch ( intermediate piece of antler, wood or ivory) is placed. While a discount core can be posted to this end without a face plant, the plant an effective hitting area and a Leitgrades is always required when a blade core to control the blade enclosure.

When retouching the core of this is a core device, this may have been either intentionally produced (for example, hand ax or blade tip ), in other cases, is only a secondary product ( for example, a blade core, which is used as a keel scratches).