| Answer | Crossword Clue |
|---|---|
| schiller | a brownish lustre occurring on certain minerals |
| schillers | SCHILLER, a brownish lustre occurring on certain minerals |
| vanadium | rare element occurring in certain minerals and obtained as a light-gray powder with a silvery luster or as a ductile metal: used as an ingredient of steel to toughen it and increase its shock resistance. Symbol: V; at. wt.: 50.942; at. no |
| lithiums | soft, silver-white metallic element, the lightest of all metals, occurring combined in certain minerals. Symbol: Li; at. wt.: 6.939; at. no.: 3; sp. gr.: 0.53 at 20┬░C |
