Home > Laskowski Ⅲ – July 6 > MS1857 Gadolinite-(Y)


Gadolinite-(Y) is a yttrium iron beryllium silicate, related structurally to datolite. Klaproth (1802) named the mineral after the Finnish chemist, Johan Gadolin (1760-1852), who discovered yttrium in this mineral. Brøgger et al. (1922) describes gadolinite-(Y) from this locality.

This is a tight mass of crystal sections to 5 cm. There are numerous crystal faces, some of which are likely concealed under interstitial feldspar. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona. A Naturhistoriska Riksmuseet (National Museum of Natural History, Stockholm) label accompanies this specimen.

Price: $450

Item code: MS1857

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