"exotic alkaline rock"@en . "Kimberlite, lamproite, or lamprophyre. Generally are potassic, mafic or ultramafic rocks. Olivine (commonly serpentinized in kimberlite), and phlogopite are significant constituents."@en . . . "exotic alkaline rock"@en . "2015-08-18 18:02 PM CEST"^^ . "Kimberlite, lamproite, or lamprophyre. Generally are potassic, mafic or ultramafic rocks. Olivine (commonly serpentinized in kimberlite), and phlogopite are significant constituents."@en . . . . . . "http://inspire.ec.europa.eu/codelist/LithologyValue/exoticAlkalineRock"^^ . . . . . . .