basaltic trachandesite punika, hard rock nggoleki-grained sing formulir nalika bit lahar njupuk metu saka gunung.
jaspillite jinis rock sedimentary kang kawangun dening compaction lan segara saka bagéyan bejat utawa weathered rocks lan mineral.
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
fe, wesi (iii) oxide, silikon dioksida