
1) Bismuth mineral 2) Oxide mineral
Found on
https://www.crosswordclues.com/clue/daubréeite

Daubréeite is a rare bismuth oxide–halide mineral with formula BiO(OH,Cl). It is a creamy-white to yellow-brown, soft, earthy clay–like mineral which crystallizes in the tetragonal crystal system. It is a member of the matlockite group. It was first described for an occurrence in the Constanicia mine, Tazna, Bolivia, in 1876. It was named for...
Found on
http://en.wikipedia.org/wiki/Daubréeite
No exact match found.