NOUN: "an impure mixture of earthy hydrous aluminum oxides and hydroxides that is the principal source of aluminum" Crossword Clue

We have the 7-letter answer for NOUN: "an impure mixture of earthy hydrous aluminum oxides and hydroxides that is the principal source of aluminum" crossword clue, last seen in the Missing Letter Crossword December 22, 2025 puzzle. Let us help you solve the crossword clue that has you stumped so you can finish the puzzle.

NOUN: "an impure mixture of earthy hydrous aluminum oxides and hydroxides that is the principal source of aluminum" Crossword Answer

↓16.

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Helpful Hints

(noun)
1. a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst

Hint 2: Clue Definitions

ALUMINUM (noun)
1. a silvery ductile metallic element found primarily in bauxite
PRINCIPAL (noun)
1. the educator who has executive authority for a school
2. the major party to a financial transaction at a stock exchange; buys and sells for his own account
PRINCIPAL (adjective)
1. most important element

More Missing Letter Crossword (12/22/2025) Answers

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24. NOUN: "the tough hard durable wood of [a certain] tree"

25. NOUN: "an idyllic, exotic, or luxurious place"

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Down

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15. Abbr. on some business cards

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23. NOUN: "a depression in the middle of the abdomen that marks the point of former attachment of the umbilical cord"

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