1) Copper mineral 2) Orthorhombic mineral
Found on
https://www.crosswordclues.com/clue/meneghinite
Meneghinite is a sulfosalt mineral with the chemical formula CuPb13 Sb7S24. In the orthorhombic crystal system, meneghinite has a Mohs hardness of 2½, one perfect cleavage and a conchoidal fracture. It is a blackish lead-grey in colour and gives a black shining streak. Its lustre is metallic. Discovered in the Italian Province of Lucca in 1852, i...
Found on
http://en.wikipedia.org/wiki/Meneghinite
No exact match found.
