Fluocerite

Fluocerite in the matrass yields water and at the melting point of glass the matrass is attacked at a distance from the assay.

From an analysis of a specimen from Broddbo, Berzelius considered it a combination of the fluorine and the fluoride of cerium. The name fluocerite was given by Haidinger. Crystallographic data about the fluocerite from Broddbo have been published by A. E. Nordenskiöld and G. Flink.

This shows that all fluocerites are strongly enriched in LRE but the proportions vary as shown by the sum of La + Ce + Pr which varies from 70 to 96% of the total RE content.