Related Clues:
- They come in sheets
- They're flaky
- Flaky minerals
- Aluminum silicate minerals
- Certain silicates
- Countertop minerals
- Silicate minerals
- Biotite and phlogopite
- Fuchsite and alurgite
- Biotite and lepidolite
- Isinglass et al.
- Minerals in thin sheets
- Thin-layered minerals
- Volcanic rock types
- A group of women in M&S getting minerals