a carbonate mineral, hydrated sodium and calcium carbonate [formulated Na2Ca(CO3)25H2O], that precipitates from soda lakes. It has been identified in deposits at Lagunillas, Venezuela; in the eastern Gobi (desert), Mongolia; near Ragtown, Nev., U.S.; at Borax Lake, Mono Lake, and Searles Lake, Calif., U.S.; and Independence Rock, Wyo., U.S. Gaylussite readily weathers to calcite. For detailed physical properties, see carbonate mineral (table)
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|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|the offspring of a zebra and a donkey.|