| Answer | Crossword Clue |
|---|---|
| EELGRASS | Tidewater plant used in packing glass |
| perlite | volcanic glass in which concentric fractures impart a distinctive structure resembling masses of small spheroids, used as a plant growth medium |
| pearlite | volcanic glass in which concentric fractures impart a distinctive structure resembling masses of small spheroids, used as a plant growth medium |
| perlitic | volcanic glass in which concentric fractures impart a distinctive structure resembling masses of small spheroids, used as a plant growth medium |
