Original media from our community.
|dy|, |ho|, |er|, and |tm|
Four chemical elements were named after the town of Ytterby, Sweden, where many rare-earth elements were discovered from the ores mined there. In this photo is |y| (large chunk), |yb| (in ampoule), |tb| (brassy pieces), |er| (silvery pieces). Also included are small pieces of dull, slightly oxidized |ho|, which takes the name of Stockholm, Sweden.
Very shiny piece of Erbium metal. |er| should not be confused with |tb|.
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