1) Copper mineral 2) Phosphate mineral
Found on
https://www.crosswordclues.com/clue/tsumebite
Tsumebite is a rare phosphate mineral named in 1912 after the locality where it was first found, the Tsumeb mine in Namibia, well known to mineral collectors for the wide range of minerals found there. Tsumebite is a compound phosphate and sulfate of lead and copper, with hydroxyl, formula Pb2Cu(PO4)(SO4)(OH). There is a similar mineral called ars...
Found on
http://en.wikipedia.org/wiki/Tsumebite
No exact match found.
