harzburgite punika, hard rock nggoleki-grained kang jinis metasomatite, ateges ngrubah basalt. iku formulir karo utawa tanpa crystallization, salah siji ngisor permukaan minangka rocks intrusive utawa ing lumahing minangka rocks extrusive.
amphibole, chromite, garnet, Magnesium, olivine, phlogopite, plagioclase, pyroxene
ca, fe, mg, kalium, silikon dioksida, sodium, titanium dioxide
udan kimia, udan mechanical
erosi kimia, erosi segara