Wangun scoria nalika magma ngemot jumlah ageng mili gas dipun bibaraken saka gunung mbledhos sak jeblugan.
greenschist punika medium rock bahan metamorphic, kawangun dening metamorfosis saking mudstone utawa krikel, utawa sawetara jinis rock igneous, nalika lagi ngalami luwih Suhu lan tekanan.
apatite, biotite, kalsit, Feldspar, hematite, hornblade, ilmenite, magnetite, olivine, pyroxene, quartz, silika
alusite, amphibole, biotite, chlorite, epidote, Feldspar, garnet, grafit, hornblade, kyanite, micas, muscovite utawa illite, porphyroblasts, quartz, serpentine, sillimanite, staurolite, talc
erosi kimia, erosi gisik, erosi Glacier
erosi kimia, erosi gisik, erosi Glacier, erosi segara