| Rating | Solver | Clue |
|---|---|---|
| METAL | Mineral product | |
| REALGAR | Arsenic sulphide, a mineral of a brilliant red color; red orpiment. It is also an artificial product. | |
| BITUMEN | Mineral pitch; a black, tarry substance, burning with a bright flame; Jew's pitch. It occurs as an abundant natural product in many places, as ... |