tatanan
basaltic trachandesite punika, hard rock nggoleki-grained sing formulir nalika bit lahar njupuk metu saka gunung.
Flint wis kawangun dening bosok lan compaction saka macem-macem organisme kayata kembang karang lan diatoms ing banyu.
isi Mineral
olivine, plagioclase, pyroxene
Silicon
senyawa isi
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
silikon dioksida
jinis metamorphism
kontak metamorphism
ora ditrapake
jinis udan
udan biologi
ora ditrapake
jinis erosi
ora kasedhiya
erosi kimia, erosi gisik, banyu erosi