| Answer | Crossword Clue |
|---|---|
| PERIDOTITE | Rock containing olivine |
| ciminite | a rock containing olivine |
| ciminites | CIMINITE, a rock containing olivine |
| picrite | granular igneous rock composed chiefly of olivine and augite, but containing small amounts of feldspar |
| peridotite | A dense, coarse-grained plutonic rock containing a large amount of olivine, believed to be the main constituent of the earth's mantle |
| ferromagnesian | containing iron and magnesium, as applied to the mafic minerals, eg olivine |
