clariten.

/ˈklɛːrʌɪt/Etymology: Named 1874 < Clara Mine, Baden, where found: see -ite suffix1.
Mineralogy.
1875 in Dana
1879 H. Watts 3rd Suppl. I. 519 Clarite..is monoclinic (enargite is rhombic)..colour dark lead-grey. Streak pure black.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2018).