Specimen of gelena-rhodonite lead ore from Broken Hill, NSW Australia. Collected from what was Pasminco's Southern Opertions in 1996 from ~1,800m below surface (It's all a bit hazy - it was a student field trip!).
Thanks to Nathan Siddle for the tips on photographing sulphides. I'm not quite there with this one yet - still a couple of things to try!