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Grayish mineral
Answer for the clue "Grayish mineral ", 4 letters:
urao
Alternative clues for the word urao
Word definitions for urao in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Trona \Tro"na\, n. [Of Egyptian or North African origin.] (Chem. & Min.) A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O , occurring as a white crystalline fibrous deposit from certain soda brine ...
Wiktionary
Word definitions in Wiktionary
n. (context mineralogy English) The mineral trona.