Ferberite typically occurs in pegmatites, granitic greisens, and high temperature hydrothermal deposits. It is also found in granite pegmatites and greisens. The occurrence of large specimen crystals is most common in pegmatites, skarns, and granite greisens. It occurs in granite pegmatites, in some high-temperature quartz veins, greisens and granites. Stockworks are common in many ore deposit types and in greisens. It occurs in greisens, pegmatite, and quartz veins often associated with tin ore deposits. Later, two sons, Andrew and Jesse, were born to the Greisens. Geologic occurrence is in granite pegmatites, high-temperature tin veins, and greisens. Greisens are formed by endoskarn alteration of granite during the cooling stages of emplacement.