| Answer | Crossword Clue |
|---|---|
| muscovites | MUSCOVITE, a type of mica, used as an insulator |
| muscovite | a type of mica, used as an insulator |
| MUSCOVITE | Mica that's used as an electrical insulator |
| pressboard | A hard, dense kind of board with a smooth finish, typically made from wood or textile pulp or laminated wastepaper, and used as an electrical insulator and for making light furniture |
| vermiculite | A yellow or brown mineral found as an alteration product of mica and other minerals, and used for insulation or as a moisture-retentive medium for growing plants |
| MICA | Silicate used as an insulator |
| MICA | Mineral used as an insulator |
