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This undated image provided by the Mineralogical and Geological Museum of Harvard University shows a rare gold specimen called the "Ram's Horn." A team of scientists used neutrons from a particle accelerator at Los Alamos National Laboratory in New Mexico to learn more about the specimen's structure and formation process. (Mineralogical and Geological Museum of Harvard University via AP)

This undated image provided by the Mineralogical and Geological Museum of Harvard University shows a rare gold specimen called the "Ram's Horn." A team of scientists used neutrons from a particle accelerator at Los Alamos National Laboratory in New Mexico to learn more about the specimen's structure and formation process. (Mineralogical and Geological Museum of Harvard University via AP)

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