| Answer | Crossword Clue |
|---|---|
| greenstone | A greenish igneous rock containing feldspar and hornblende |
| greenstones | A greenish igneous rock containing feldspar and hornblende |
| syenites | A coarse-grained gray igneous rock composed mainly of alkali feldspar and ferromagnesian minerals such as hornblende |
| DIORITE | Igneous rock composed of feldspar and hornblende |
| diorite | granular igneous rock consisting essentially of plagioclase feldspar and hornblende |
| diorites | granular igneous rock consisting essentially of plagioclase feldspar and hornblende |
| dioritic | granular igneous rock consisting essentially of plagioclase feldspar and hornblende |
| picrite | granular igneous rock composed chiefly of olivine and augite, but containing small amounts of feldspar |
