This locality is not within the Karelia Republic, but rather, it is in the Murmanskaja Oblast', at the northern shore of Lake Vuoriyarvi. It is an alkali-ultrabasite massif with dunites, pyroxenites, ijolite-melteigites, phoscorites and carbonatites.
Ref.:
http://www.koeln.netsurf.de/~w.steffens/vuori.htm91 entries listed. 74 valid minerals. 10 type localities (valid minerals).