jinis
Flint, jasper, radiolarite, chert umum, chalcedony, agate, onyx, opal, magadi-jinis chert, porcelanite, Sinter siliceous
rhyolite
fitur
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim
rock grained banget nggoleki, iku salah siji sing paling tuwa, kuat lan paling angel rock