광물 데이터베이스와 크리스탈 테라피광물FriedrichiteHelix84·CC BY 2.0·WikimediaFriedrichiteCu5Pb5Bi7S18 IMA approved구성Composizione (% in peso)BiPbSCuBiBismuth43.1%PbLead30.5%SSulfur17.0%CuCopper9.4%