| Answer | Crossword Clue |
|---|---|
| heulandite | a zeolite consisting of a hydrous aluminosilicate of sodium and calcium |
| 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 |
| natrolite | a hydrous silicate of sodium and aluminum that is related to zeolite |
| 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 |
| nepheline | A colorless, greenish, or brownish mineral consisting of an aluminosilicate of sodium (often with potassium) and occurring as crystals and grains in igneous rocks |
