Answer | Crossword Clue |
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ulexites | a soft mineral consisting of a hydrous borate of sodium and calcium and usually occurring in loose masses of white fibers |
ulexite | a soft mineral consisting of a hydrous borate of sodium and calcium and usually occurring in loose masses of white fibers |
stilbite | white-to-brown or red zeolite mineral, a hydrous silicate of calcium and aluminum, occurring in sheaflike aggregates of crystals and in radiated masses |