| ASPHALT | Mixture of bitumen and other minerals, used in road-surfacing and roofing materials. (7) |
| KAOLIN | Fine white clay produced by the decomposition of feldspar and other minerals, used to make porcelain and bone china (6) |
| BITUMEN | Impure mixture of hydrocarbons used as a road surfacing and roofing material (7) |
| TARRAGON | Bitumen and piece of cloth on a European herb (8) |
| SALTPAN | Flat expanses of ground covered with salt and other minerals (7) |
| NIOBIUM | Transition metal found in tantalite, columbite and other minerals, symbol Nb (7) |
| SILICAS | Minerals used in glassmaking |
| GARNETS | Hard glassy red, yellow or green minerals, used as gemstones and abrasives (7) |
| OREGANO | Herb is a source of minerals used with Goan cooking |
| NOSTRIL | Last of bitumen or silt damaged air-intake (7) |
| CATSEYE | Retro-reflective safety device used in road marking (4,3) |
| SAND | Used to measure the passage of time in an hourglass, fine grains of quartz and other minerals forming a major constituent of coastal dunes, seashores, deserts and river beds (4) |
| BLUEMETAL | Crushed rock used in road surfacing (4,5) |
| TAR | Stuff used in road surfacing |
| MICA | Group of rock-forming minerals used in heating elements (4) |
| LAPISLAZULI | Beautiful stone of calcite and other minerals (5,6) |
| PITCHLAKE | Largest natural deposit of bitumen in the world, in the coastal town of Le Brea in SW Trinidad (5,4) |
| DILITHIUMCRYSTALS | Precious minerals used in the warp drive on "Star Trek" |
| STRIKE | Act of knocking down all pins with the first ball in tenpin bowling; or, a discovery of gold or other minerals (6) |
| SCARAB | Sacred coleopteran of the ancient Egyptians; or, a piece of amethyst, carnelian, lapis lazuli, turquoise or other mineral carved in the form of said chafer as an amulet, gem or seal (6) |
