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Silica mineral

Clue: Silica mineral

We have 2 possible answers for the clue Silica mineral which appears 6 times in our database.

Possible Answers:

  • OPAL

  • QUARTZ

Last seen in:

  • The Times - Concise - Sunday Times Concise No 1746
  • The Times - Concise - Times2 Concise 5236 - August 21, 2010
  • The Times - Concise - Times2 Concise 4644 - September 27, 2008
  • USA Today - Mar 20 2008
  • Thomas Joseph - King Feature Syndicate - Sep 17 2007
  • The Guardian - Quick crossword No 11,264 - Jun 13 2006

Related Clues:

  • Autumn birthstone
  • Birthstone for some Scorpios
  • A gem of a lady?
  • Certain gemstone
  • Bringer of bad luck, in legend
  • Shade of gray
  • Australian gem
  • Libra's stone
  • It's less dense than quartz
  • Iridescent mineral
  • Certain birthstone
  • Birthstone for 31-Across
  • Gem with a play of colors
  • Down Under gemstone
  • Stone from Down Under
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