| Answer | Crossword Clue |
|---|---|
| DESERTS | Black Rock, Mojave, etc. |
| DESERTS | Mojave and Black Rock. |
| DESERTS | Black Rock and Mojave. |
| lamprophyre | a compact intrusive rock with phenocrysts of black mica, hornblende, etc |
| lamprophyres | LAMPROPHYRE, a compact intrusive rock with phenocrysts of black mica, hornblende, etc |
| DESERTS | Mojave, Imperial Valley, etc. |
