en2015-08-18 18:02 PM CESThttp://inspire.ec.europa.eu/codelist/LithologyValue/exoticAlkalineRock:1http://inspire.ec.europa.eu/codelist/LithologyValue/exoticAlkalineRockKimberlite, lamproite, or lamprophyre. Generally are potassic, mafic or ultramafic rocks. Olivine (commonly serpentinized in kimberlite), and phlogopite are significant constituents.