Phosphate nodule with white botryoidal metavariscite enclosed by a thick yellowish variscite rind. From Lucin, Box Elder County, Utah. (Photo by W. Cordua.)

Formula: AlPO4.2H2O Monoclinic


Metavariscite is a pale-green mineral found as granular masses or small tabular crystals precipitated by ground water in association with other phosphate minerals.

DODGE COUNTY: Metavariscite is a microscopic component of the oolites of the Mayville iron formation (Hawley and Beaven1934). The iron formation is exposed in old mines and outcrops in sec. 1, 12 and 13 T.11N. R.16E., east of Neda.