| Answer | Crossword Clue |
|---|---|
| ophitic | pertaining to ophite (an igneous rock) |
| dioritic | pertaining to diorite (an igneous rock) |
| diabasic | pertaining to diabase (an igneous rock) |
| picritic | pertaining to picrite (an igneous rock) |
| dunitic | pertaining to dunite (an igneous rock) |
| trachytic | of, pertaining to, or resembling, trachyte, an igneous rock |
| ophites | OPHITE, an igneous rock |
