melanephelinite

Noun

 * 1)  A dark nephelinite.
 * 2) * 2019, A. R. Woolley, Alkaline Rocks and Carbonatites of the World (part 4, page 450)
 * Seven samples from monchiquite dykes analysed chemically by Upton et al. (1992), including trace elements and, for three rocks, Sr and Nd isotope data, were classified on chemical grounds as olivine melanephelinite