Volborthite, Vesignieite, Coffinite: Monument Valley District, Navajo County, Arizona, USA

Description

Species: Volborthite, Vesignieite, Coffinite

Locality: Monument Valley District, Navajo County, Arizona, USA

Size: 9.6 x 3.3 x 11.6 (478 Grams) 

Ex. Jack Nieburger Collection

A great example of  these rare vanadium and uranium species from a classic American locality. Ex. Jack Nieburger collection with several old labels. Measures ~10,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe. Rare!