tatanan
nephelinite 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.
jasperoid jinis langka lan aneh saka rupane metasomatic saka rocks. iku kawangun dening rupane nemen saka rocks wall ing zona nyukur kang uga dumadi ing endapan, andesites, trachytes lan basalts.
isi Mineral
clinopyroxene, nepheline, plagioclase
mineral lempung, pyrite, quartz, sulfides
senyawa isi
ca, cao, karbon, cl, MgO
NaCl, cao, karbon dioksida, Magnesium karbonat, MgO
jinis metamorphism
kontak metamorphism
metamorphism kakubur, metamorphism cataclastic, metamorphism regional
jinis udan
udan biologi, udan kimia, udan mechanical
ora ditrapake
jinis erosi
erosi kimia, banyu erosi, angin erosi
ora ditrapake