essexite jinis rock igneous, kang biasane abu ireng rock plutonic. kanggo tatanan kang essexite, magma cocok karo komposisi pas k, ba, rb, cs, sr kudu diprodhuksi.
augite, Feldspar, hornblende, nepheline, olivine, plagioclase, pyroxene
aluminium oxide, ba, ca, cs, kalium, rb, sodium, sr
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism, hidrotermal metamorphism, impact metamorphism
erosi gisik, erosi Glacier, banyu erosi