jinis
gandheng tuff, tuff rhyolitic, basaltic tuff, trachyte tuff, tuff andesitic lan ignimbrite.
Flint, jasper, radiolarite, chert umum, chalcedony, agate, onyx, opal, magadi-jinis chert, porcelanite, Sinter siliceous
fitur
tansah ditemokake minangka pipo vulkanik liwat lemah ndhuwur Continental jero
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim
pinunjul arkeologi
monumen
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monumen misuwur
pulo Paskah ing segitiga Polinesia, pacific segara
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reca
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patung misuwur
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Pictographs
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petroglyphs
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figurines
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fosil
absen
saiki