| These ejections were followed by dark sand, with lapilli and small fragments of scori of the same colour. |
| Mount Vesuvius' eruption buried the ancient Roman city of Pompeii in volcanic ash and lapilli, preserving it in its current ghost-town-like state. |
| There was no pumice shown to me, but the dust and lapilli all seemed to be composed of comminuted old rock. |
| With the lapilli, and sometimes without them, the smoke carried a very minute dust or sand, which is generally called ashes. |
| A cubic mile of material is said to have been thrown out in the form of lapilli and dust by the successive explosions. |
| Projections are defined according to their size: higher than 64 mm for the blocks, of 2mm to 64 mm for the lapilli, and less than 2 mm for ashes. |
