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n.1.(Min.) Hydrous carbonate of lanthanum, found in tabular white crystals.
References in periodicals archive ?
1162 Lanthanite [Ueberroth mine, Friedensville], Saucon Valley, Pennsylvania, no.
The name lanthanite was introduced by Haidinger (1845); other obsolete names include "carbocerine" (Beudant, 1832), "hydrocerite" (Hartmann, 1843), and "hydrolanthanite" (Glocker, 1847).
Lanthanite is distinctly a late-stage, low-temperature mineral.