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English Dictionary - With Multi-Lingual Search Your Query of 'feldspar' Resulted in 1 Matches Displaying Items 1 through 1 Definitions feldspar noun  (mineralogy) A large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks. Translations:  Spanish: feldespato Etymology: Feld, field (from Middle High German veld, from Old High German feld) + Spath, spar        Find:   Words Starting With:   Words Ending With:   Words Containing:   Words That Match:    Translate Into:    Dutch   French   German    Italian   Spanish Browse the Dictionary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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