Min. [f. next + -ANE.] A mineral produced by alteration or decomposition of sphene or titanite: see quot.
1856. C. U. Shepard, in Amer. Jrnl. Sci., Ser. II. XXII. 96. Xanthitane. In hollow crystals with the form of sphene, and pulverulent. Color pale yellowish white…. It is found in a decomposing feldspar,… and probably proceeds from the decomposition of sphene.
