Deposits of REE, U, and critical elements like Nb, Ta which are bound to carbonatites, ensimatic pegmatites or occur as intramagmatic/ granitic deposits, e.g. , Rössing, Namibia
Also possibly one can consider including Kimberlite pipes and shoshonite-lampropyre intrusions, ie diamonds, and the deep tapping alkali diatreme mineralization of deposits like Cripple Creek, Colorado, a gold-telluride system of huge scale.