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:
- Semitransparent insulating mineral
- Sedimentary clay rock, which may contain oil
- Crystalline rock
- Rock often containing quartz
- Translucent mineral in sheets
- Oil-rich mineral
- Fossil holder
- Kerosene source
- Microphone beside a thermal mineral
- Barman gets his tea by rock in Wicklow mountains
- Fissile rock
- Fracking rock
- Rock used for flagstones
- Mineral in thin sheets
- Thin-layered rock