1) Copper mineral 2) Orthorhombic mineral
Found on
https://www.crosswordclues.com/clue/calumetite
Calumetite is a natural rarely occurring mineral. It was discovered in 1963 at the Centennial Mine near Calumet, Michigan, United States. Calumetite was first discovered along with anthonyite. It has a chemical formula of Cu(OH,Cl)2•2(H2O). ==History== Calumetite was discovered in 1963 at the Centennial Mine. It is named after the locality where...
Found on
http://en.wikipedia.org/wiki/Calumetite
No exact match found.
