jinis
nepheline-basanite, analcite-basanite lan leucite-basanite
mercon obsidian, mahoni, Sheen obsidian, Snowflake obsidian lan Beludru merak obsidian
fitur
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim, digunakake minangka Touchstone a
pamblokiran negativity, mbantu kanggo ngreksa marang depresi
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