| Answer | Crossword Clue |
|---|---|
| grainless | small hard particle or crystal |
| grains | any small, hard particle |
| grain | any small, hard particle |
| quasiparticles | A quantum of energy in a crystal lattice or other system of bodies that has momentum and position and can in some respects be regarded as a particle |
| quasiparticle | A quantum of energy in a crystal lattice or other system of bodies that has momentum and position and can in some respects be regarded as a particle |
| spicule | small or minute, slender, sharp-pointed body or part; small, needlelike crystal, process, or the like |
