Ora Kasadhiya
Flint, jasper, radiolarite, chert umum, chalcedony, agate, onyx, opal, magadi-jinis chert, porcelanite, Sinter siliceous
gampang pecah dadi lancip piring, iku salah siji saka rock tuwa, lumahan asring mengilap
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim