QUARTZ
Set to 5 different clues across 5 published puzzles, most often “What a crystal ball gazer sees” — The New York Times, Saturday, 9 April 2011.
6 letters
Every clue on record, most used first
- What a crystal ball gazer seesonce
The New York Times — Saturday, 9 April 2011
- Tiger's-eye, essentiallyonce
The New York Times — Friday, 7 September 2007
- 7 on the Mohs scaleonce
The New York Times — Tuesday, 13 June 2006
- Hard rockonce
The New York Times — Friday, 2 March 2001
- Seven on the Mohs' scaleonce
The New York Times — Thursday, 10 February 1994