| Answer | Crossword Clue |
|---|---|
| TALC | Soft gray mineral. |
| GALENA | Soft blue-gray mineral |
| GALENA | Soft, blue-gray mineral |
| talc | soft green-to-gray mineral |
| talcs | soft green-to-gray mineral |
| talcum | soft green-to-gray mineral |
| plumbago | very common mineral, soft native carbon, occurring in black to dark-gray foliated masses, with metallic luster and greasy feel: used for pencil leads, as a lubricant, and for making crucibles and other refractories; plumbago; black lead |
