jinis
rocks pumice, rocks obsidian, rocks perlite, rocks porphyritic.
nepheline-basanite, analcite-basanite lan leucite-basanite
fitur
ngandhut asam ing alam, kasedhiya ing persil saka werna
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim, digunakake minangka Touchstone a
pinunjul arkeologi
monumen
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monumen misuwur
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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
absen