jinis
Thermal Travertine lan Tufa
nepheline-basanite, analcite-basanite lan leucite-basanite
fitur
stalactites lan stalagmites sing kawangun saka watu iki, lumahan asring mengilap, rock grained banget nggoleki
clasts Gamelan kanggo tutul, gampang pecah dadi lancip piring, tahan struktural dhuwur marang erosi lan iklim, digunakake minangka Touchstone a
monumen misuwur
Colosseum ing Roma, Italia, Sacre coeur in paris, prancis, Trevi Fountain in rome, italy
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