Form of silica Crossword Clue
4 letters · New York Times · Wednesday, May 13, 2009 · 64-Across
Appeared in 3 New York Times Crosswords between June 1995 and May 2009.
Exact puzzle match · New York Times · May 13, 2009 · 64-Across · 4 letters
OPAL0 of 4 letters revealed
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What does this clue mean?
a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
noun
WordNet® (Princeton University)
Other clues with the same answer
View all clues with this answer- Gem mined in Australia
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New York Times · Monday, September 8, 2025 · 4 letters
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More clues from this crossword
- 58-Across Easy preparation instruction ... or a hint to the starts of 20-, 28- and 48-Across
- 59-Down Per unit
- 60-Down Jean Arp's movement
- 61-Across Big cheese
- 61-Down Signal at Christie's
- 62-Down "___ losing it?"
- 63-Down Avocation, slangily
- 65-Across Group of thousands, maybe
- 66-Across Muscat native
- 67-Across Comstock's find
- 68-Across Scoreboard tally
- 69-Across One, for one
