Rutile is a common accessory mineral in variousmetamorphic and igneous rocks. Although its formulais very simple, a number of elements may substitute forTi in rutile, including Al, V, Cr, Fe, Zr, Nb, Sn, Sb, Hf,Ta, W, and U [1]. The chemical characteristics of rutile(primarily, the character of HFSE distribution) arewidely used as geochemical indicators of mineralforming processes [1, 2]; Zr content in rutile was calibratedas a geothermometer [e.g., 3]; and rutile is a suitablemineral for the U–Pb dating of metamorphism andgeothermochronological reconstructions [4]. Theresults of the U–Pb dating of rutile and titanite from therocks of the Baltic shield were used for the reconstruction of the thermal history of the Karelian craton andBelomorian mobile belt (BMB) [5, 6]. The authorsestablished a significant difference between the U–Pbages of rutiles and titanites from the rocks of the Karelian craton (Archean) and BMB (Paleoproterozoic).However, the character of trace element distribution inrutile, which may potentially provide insight into theparameters controlling crystallization processes, wasnot previously explored in the rocks of the Baltic shield.This paper reports the results of an in situ LA–ICP–MS investigation of the geochemistry and U–Pb age ofrutile from metamorphic rocks of two areas within theBMB, the Shueretskoe deposit of garnet in its centralpart and the Salma eclogites from the northwesternBMB. Although the rocks of these complexes wereimprinted penecontemporaneously by the youngestSvecofennian metamorphism, they are significantlydifferent in the mineral and chemical composition ofrutilebearing rocks and the geologic history of theirtransformation.In the Shueretskoe deposit, rutile inclusions wereseparated from a garnet megacryst (sample 6). The ageof the metasomatic crystallization of this garnet wasdetermined as 1837 ± 14 Ma by the in situ SHRIMP IIdating of coexisting zircon and monazite inclusions atthe Center of Isotopic Investigations, Karpinskii AllRussia Geological Institute [7]. The deposit is locatedin the central part of the BMB, at the mouth of theShuya River and hosted by the metamorphic rocks ofthe Belomorian complex. Economically important aremetasomatic garnet gedritite and glimmerite in garnetbearing gneisses and amphibolites. Garnet occurs inthe metasomatic rocks as irregular nodules or, morerarely, faced crystals up to 25 cm across. The metasomatism that resulted in the formation of the garnetdeposit occurred under peak metamorphic conditions at a temperature of 650–680°C and a pressureof 7.8–8.5 kbar [7].The Salma eclogites were investigated in the pit ofthe KuruVaara deposit, where tonalite–trondhjemitegneisses with bodies and blocks of eclogites and eclogitelike