It was discovered by
Bulgarian mineralogist
Georgi Ivanov Terziev, who named it in honor of his professor
Ivan Kostov (Иван Костов) (1913–2004).[7][8] In 1965 kostovite was approved as a new species by the
International Mineralogical Association.[9] The
type locality is
Chelopech copper ore deposit,
Bulgaria.[10] Small deposits have also been found in Kochbulak (Eastern
Uzbekistan), Commoner mine (
Zimbabwe),
Kamchatka (Russian Far East), Ashanti (Ghana), Buckeye Gulch (
Leadville, Colorado, US),
Bisbee (Arizona, US),[11] Kutemajärvi (Finland), Coranda-Hondol (Romania), Glava (Sweden), Bereznjakovskoje (Southern Urals, Russia),
Moctezuma (Sonora, Mexico),
Panormos Bay (Tinos Island, Greece), Guilaizhuang Mine, Tongshi complex (Linyi Prefecture, Shandong Province, China),
Kalgoorlie-Boulder City, (Goldfields-Esperance region, Western Australia, Australia).[12]
^
abAnthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (2005).
"Kostovite"(PDF). Handbook of Mineralogy. Mineral Data Publishing. Retrieved 6 August 2022.