Sky
Created page with "= Mindat Description = Igneous rocks that mostly do not fit into the standard QAPF, TAS and ultramafic diagrams = Geoscience Ontology Description = Rock with 'exotic' mineralogical, textural or field setting characteristics; typically dark colored, with abundant phenocrysts. Criteria include: presence of greater than 10 percent melilite or leucite, or presence of kalsilite, or greater than 50 percent carbonate minerals. Includes Carbonatite, Melilitic rock, Kalsilitic r..."