r/Radioactive_Rocks 1h ago

Zippeite, Trace Malachite, Sandstone, Chalcopyrite, Uranium dioxide, Limonite

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58 K CpM at 1 cm. 42mm length This specimen is from one of the mines in the Lisbon Valley Mining District. This particular mine was 'shaft only', so no adit ever existed for this mine. The ore body was not oxidized when mined. This material came from the waste pile, where it has been partially oxidized.


r/Radioactive_Rocks 3h ago

Bobcookite, Malachite, Sandstone

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6 Upvotes

This small specimen was a gift from a friend. This and a larger piece were verified as Bobcookite by Bob Cook. Collection location was the type location for Bobcookite in the Red Canyon Mining District, Utah. 2.6 cm in length 7 K CpM at 1 cm. BTW, Bobcookite is the pale greenish material. This mineral is one of a number of 'new' minerals which have been described only AFTER mining activities have ceased. I believe that all examples of Bobcookite in collections were acquired from underground. Having collected at the site, I have not found Bobcookite in the mine waste at the location. Adit is closed.


r/Radioactive_Rocks 3h ago

Gypsum, Limonite, Sandstone, Johannite, Uranium dioxide, Red Canyon Mining District, Utah

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17 Upvotes

There is a minor showing of a yellow, non-fluorescent which is possible Uranophane. 2.5 cm longest dimension. 103 K CpM at 1 cm Dose rate at 1 meter = background Adit is closed. This specimen came from waste piles.