leucophanite

Etymology
Originally named Leukophan (1840) by the Norwegian mineralogist Jens Esmark, in allusion to its whitish color, from. The suffix, added later, is used to form nouns denoting minerals.

Noun

 * 1)  A sorosilicate mineral that occurs in pegmatites and alkali igneous complexes as yellow, greenish or white triclinic crystals.