YTTRO-CERITE, n. A mineral consisting of the oxyd of cerium, yttria, lime and fluoric acid.
A mineral occurring very sparingly at Finbo and Brodbo near Fahlun, imbedded in quartz. Its color is violet-blue, inclining to gray and white. It is sometimes white. These colors generally alternate in layers, in the same specimen. It is said to consist of fluorid of calcium, fluorid of yttrium, fluorid of cerium, and oxygen combined with one or more of these metals.
- A mineral of a violet-blue color, inclining to gray and white. It
is a hydrous fluoride of cerium, yttrium, and calcium.