Description: Gadolinite Ytterby, Vaxholm, Sweden FoV: 5 x 3 cm Not a too good piece, but gadolinite from this historical Swedish quarry was the most important mineral for the discovery of most of the 10 different rare earth elements - four of which have names derived directly from the place itself: Yttrium, Terbium, Erbium, Ytterbium the site: http://www.mindat.org/loc-3191.html

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