| Answer | Crossword Clue |
|---|---|
| eucrites | rock consisting of a very basic gabbro |
| eucrite | basic gabbro consisting mainly of bytownite and augite |
| claystone | a compact very fine-grained rock consisting of consolidated clay particles |
| claystones | CLAYSTONE, a compact very fine-grained rock consisting of consolidated clay particles |
| aa | a volcanic rock consisting of angular blocks of lava with a very rough surface |
| aas | AA, a volcanic rock consisting of angular blocks of lava with a very rough surface |
