We have the 4-letter answer for NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" crossword clue, last seen in the Missing Letter Crossword December 21, 2025 puzzle. Let us help you solve the crossword clue that has you stumped so you can finish the puzzle.
NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" Crossword Answer
Find more clues, hints, and info below.
Find more clues, hints, and info below.
Helpful Hints
- (noun)
- a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
- IRIDESCENT (adjective)
- varying in color when seen in different lights or from different angles
- having a play of lustrous rainbow colors
- AMORPHOUS (adjective)
- having no definite form or distinct shape
- without real or apparent crystalline form
More Missing Letter Crossword (12/21/2025) Answers
Across
14. Perched on
17. Zippo
18. Frees (of)
38. Silent performer
39. "Superman" band
41. Less irrational
56. Golfer's warning
58. Despite, briefly
63. Perfect place
Down
3. Bell's sound
4. Represent
13. Kickoff tool
21. Be a snitch
30. Strong string
37. Florida fun spot
43. Horse comments
47. Dossier item
49. "The Wizard ___"
50. Find a new home
51. States of rage
53. Funny Bargatze
55. Young fellow
NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" Crossword Clue Q&A
- When was NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" crossword clue used most recently?
- This clue was last seen in the December 21, 2025's Missing Letter Crossword.
- What was the most recent answer for NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" crossword clue?
- The most recent answer for the clue is OPAL
- What is the 4-letter answer for NOUN: "a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem" crossword clue?
- OPAL
That should be all the information you need to solve for the NOUN: “a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem” crossword clue! Be sure to check more clues on our Crossword Answers.