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1. so I sort of went from metallic elements now to transition metal oxides--
2. In this galaxy, steel is an alloy, which is a metal you make by combining two or more metallic elements.
3. The reddish brown tinge on it is from oxidation, which is when certain metallic elements combine with oxygen to form oxides.
4. Some of the metallic elements at the very top, those are like model train parts.
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