ABSTRACT
This mineral is a silicate of titanium and calcium, the formula is written as CaTiSiO5. Titanite has been known for being one of the concentrators of heightened amounts of REE [Sahama, 1946; Sahama & Vahatalo, 1941]; at the same time the regularities of distribution of these impurities in this mineral are not well studied and among the published works the most common are the analyses of titanites from granitic pegmatites, granodiorites, dacites, trachyandesites and some metamorphic rocks [Lesnov, 2006].
