Last seen in:
- Universal - Oct 30 2024
- Thomas Joseph - King Feature Syndicate - Dec 30 2022
- Wall Street Journal - Mar 25 2020 - Climbing the Walls
- Newsday.com - Jun 3 2016
- Newsday.com - Aug 9 2015
- USA Today - Feb 26 2014
- Thomas Joseph - King Feature Syndicate - Jan 19 2013
- Thinks.com - May 27 2011
- Thinks.com - May 27 2009
- Premier Sunday - King Feature Syndicate - Oct 19 2008
Related Clues:
- Product of clay compaction
- Shimmer makeup mineral
- Introduction of secure, healthy, source of gas
- Flexible mineral sheet
- Mineral with easily separated sheets
- Material found in countertops
- Oil source has damaged the French
- Some mudrock
- Frackable rock
- Rock formed from clay
- Earth's crust, mostly
- Mineral that splits into sheets
- Mineral used in roofing
- Mineral used in capacitors
- Mineral easily split into layers