definisi
luxullianite jinis langka granit, dikenal kanggo ngarsane kelompok-kelompok saka radially disusun kristal Tourmaline acicular kang diubengi déning phenocrysts saka orthoclase lan quartz ing matrik saka kuarsa, Tourmaline, Feldspar alkali, mica coklat.
Coquina punika rock sedimentary sing dumadi salah siji Enèng sing lamur meh tanggung saka diangkut, abraded, lan mekanisme-diurutake pecahan saka meriam moluska, trilobites, brachiopods, utawa invertebrata liyane
Etimologi
saka desa luxulyan di, england, ngendi iki macem-macem granit ditemokake
saka Concha (latin) + Coquina (spanish) + Keong (english) = couquina (pertengahan abad ka-19)
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock opaque