San Marcial can be distinguished from the early Cibola types by its off-white paste containing sand and crushed rock ( hornblende-latite ) temper, and by thick vessel walls with polished but usually unslipped surfaces ( Marshall and Walt 1984 : 37; Mera 1935 : 25; Wilson 2005 : 22 ).
12.
On a purely chemical basis, an extrusive lamprophyre ( sp . " minette " ) might be classified as potassic trachybasalt, shoshonite, or latite using the total alkali-silica diagram ( see TAS classification ), or as absarokite, shoshonite, or banakite using a classification sometimes applied to potassium-rich lavas.
