Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite.
en.wikipedia.org Radon decays to lead-210, then to bismuth-210, polonium-210 and stabilizes with lead-206.
en.wikipedia.org The resulting bismuth compounds have higher melting points and lower densities than the lead, and can be removed as dross.
en.wikipedia.org Bismuth germanium oxide is used in detectors in particle physics, aerospace physics, nuclear medicine, geology exploration, and other industries.
en.wikipedia.org For paste solders, bismuth/tin/silver had the lowest impact scores among the lead-free alternatives in every category except non-renewable resource consumption.
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