<P> The name of the village translates to "outer village". </P> <P> Quartz was mined in the area beginning in the 1500s for the ironworks in Uppland . Feldspar was mined for local porcelain manufacture, such as Gustavsberg, and the porcelain trade with Britain and Poland . The mine is likely the first feldspar mine in Sweden, starting in 1790 . Feldspar mining was likely sporadic, and based on manufactures demand . This demand took off in the 1860s, leading to deeper mining efforts at Ytterby . The mine became one of the most productive quartz and feldspar mines in the country . Feldspar and quartz mining continued until 1933 when the mine was shut down . With 177 years of feldspar mining, it was the longest mined feldspar mine in Sweden . </P> <P> Towards the end of the 1940s, the Swedish state, through the REF (Riksnämnden för ekonomisk försvarsberedskap) became interested in possible usage of the mine . In 1953, the mine was renovated and used for the storage of jet fuel - MC 77 . The storage method led to contamination of the jet fuel, leading to problems in jet engines that used the fuel . The storage of jet fuel ended in 1978 . It was subsequently used to store diesel . In 1995, the mine was completely emptied, and in the following years the area began rehabilitation . </P> <P> The mine's elemental history began in 1787, when Lieutenant Carl Axel Arrhenius found an unidentified black mineral . He had previously explored the area for a potential fortification . His hobby interest in chemistry led him to notice the unusually heavy black rock, which he and friend Bengt Geijer examined with Sven Rinman . It was not until Finnish chemist Johan Gadolin fully analysed the mineral in 1794 and found that it 38% of its composition was a new, unidentified earth element . Swedish chemist Andres Gustaf Ekeberg confirmed the discovery the following year, and named it yttria, with the mineral named gadolinite . </P>

What elements were named for the town of ytterby where they were discovered