Samarskite-(y) in Matrix with possible Uranninite and Gummite
Formula:(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Approximate Size: 36x31x21mm
Approximate Weight: 35.4 Grams
Locality: Mitchell County, North Carolina, USA
Samarskite-(y) was named in recognition of Colonel Vasilii Yevgrafovich Samarskii-Bykhovets (Васи́лий Евгра́фович Сама́рский-Быховец) (7 November 1803 – 31 May 1870), a Russian mining engineer and Chief of Staff of the Russian Corps of Mining Engineers, the element samarium was named after him.
Yellow Gummite forms as a result of uraninite weathering and decomposition.
Shipped only with USPS Parcel Select Ground (2-8 days), wrapped in plastic, lead foil (if necessary) and bubble wrap in a box big enough to bring the parcel surface activity below the 0.5mR/hr activity limit.
The buyer must assume responsibility for this item and use it according to its intended purpose. Keep this away from children and store it at least five feet away from anywhere anyone spends a lot of time.
Geiger counter and coin not included
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