| blende | (noun) an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form | Synonyms: sphalerite, zinc blende |
|---|
| hornblende | (noun) a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron | - |
|---|
| pitchblende | (noun) a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore | Synonyms: uraninite |
|---|