| MINING | The extraction of valuable minerals or other geological materials from the earth |
| ORE | Deposit in Earth's crust of a valuable mineral or gem that can be extracted profitably (3) |
| ORES | Sources of valuable minerals |
| BOULDERCLAY | Geological material that was the typical deposit of the Glacial Period in N Europe and N America (7,4) |
| LUNAR | Cores of blue and black materials from the moon |
| OILWELL | A deep hole or shaft into the earth or seabed for the extraction of petroleum (3,4) |
| MINE | An excavation for the extraction of coal, gems and ores; the "gallery" of an insect in a leaf; or, historically, a passage under a besieged fortress to give secret ingress or to blow it up (4) |
| PROSPECT | A panoramic or fine view of the landscape; an outlook for the future; or, the location of a valuable mineral deposit or ore (8) |
| BAGASSE | The pulp remaining after the extraction of juice from sugar cane or similar plants; used as fuel and for making paper etc (7) |
| BIOPSY | Medical test involving the extraction of sample tissue or cells (6) |
| QUARRIES | Open surface excavations for the extraction of stone, slate or marble (8) |
| SPINELS | Glassy minerals or gems such as the Black Prince's Ruby in the Imperial State Crown or the Timur Ruby (7) |
| SALT | Ocean mineral or crystal from the sea, taken up as a real or figurative pinch when seasoning one's chips or in a state of doubt or incredulity (4) |
| LINEAGE | Railway part with a General Electric attachment is used in the extraction of roots (7) |
| BORE | A hole or tunnel in the ground, especially one drilled in search of minerals or oil (4) |
| LAPIDARY | The practice of shaping stone, minerals or gemstones into decorative items (8) |
| LAVENDER | Aromatic plant cultivated for garden and landscape use, also commercially for the extraction of essential oils (8) |
| ALSORAN | One who's out of place amongst minerals or animals (4-3) |
| FORESEE | Imagine possibility of money when valuable minerals lie hidden |
| NINCOMPOOP | Nine shortly work accepting mixture of materials from foolish person (10) |
