“Greenish-grey tennantite with yellow chalcopyrite, bright pale löllingite, very minor dirty-brownish bornite, dark silicates and bluish-grey possible chalcocite. This sample also contains minute patches of covellite elsewhere.
Löllingite samples at Kaatiala with very small (50-150um) chalcopyrite patches would seem to be far more common than any samples containing tennantite, such as a superb polished section donated to me by I.M. Sample from J.Dyer.”
Jouni Laurinperä - 11th July 2019