| Answer | Crossword Clue |
|---|---|
| ICEMACHINE | Where rocks are collected? |
| ORES | Rocks that are mined |
| ORES | Rocks that are picked out |
| periphyton | aquatic organisms which are attached to, or cling to, stems and leaves of rooted plants, rocks, etc |
| periphytons | PERIPHYTON, aquatic organisms which are attached to, or cling to, stems and leaves of rooted plants, rocks, etc |
| ultrabasic | Relating to or denoting igneous rocks having a silica content less than 45 percent by weight, most of which are also ultramafic |
