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Fuchsite

Fuchsite


    Fuchsite, also known as chrome mica, is a variety of the mineral muscovite that forms as the aluminum (Al) atoms in the muscovite molecular structure are replaced with chromium (Cr) atoms. This slight chemical difference produces the green hue distinctive of fuchsite.

    It was named after mineralogist Johann Nepomuk von Fuchs, whose surname rhymes with “books”.

    The presence of potassium (K) makes fuchsite very slightly radioactive since 0.012% of potassium naturally occurs as the radioisotope 40K. Don’t worry, it is harmless.

    Formed in Brazil, the world’s foremost source.

     

    You will receive a 1-2" specimen similar to those pictured here. 

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      Collections containing this item: Geology | Rocks, Crystals, & Minerals |

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