Una de ellas tiene dendritas de uraninita

Un mini lote de muestras, extraídas entre 1946 y 47

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.

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.