Synthesis, phase relations, and physical properties of solid phases in the systems tantalite-tapiolite-oxygen and tantalite-FeTaO 4 are described. In pegmatitic magma enriched in Ta, Fe, and Mn, the occurrence of one or more of the minerals tantalite, tapiolite, and wodginite and their ferrous-ferric ratios are controlled by the partial pressure of oxygen.

First Page Preview

First page PDF preview
You do not currently have access to this article.