ˈklaprəˌthīt noun
or klap·roth·o·lite klaˈprȯthəˌlīt
( -s )
Etymology: klaprothite from German klaprothit, from Martin H. Klaproth died 1817 German chemist + German -it -ite; klaprotholite alteration of klaprothite
: a steel-gray mineral Cu 6 Bi 4 S 9 consisting of a sulfide of copper and bismuth