Andersonite: Pickett Corral Mine, Uruvan, Montrose County, Colorado USA

Description

Species: Andersonite

Locality: Pickett Corral Mine, Uruvan Mining District, Montrose
County, Colorado USA

Dimensions:  1.5 x 1.5 x 1 cm.

A very nice example of this rare secondary uranium mineral, collected in May of 2023. Shows small individual andersonite crystals (rare!) and excellent extremely bright green to blue fluorescent response. Measures ~5,000 CPM on my Ludlum Model 3 Survey meter with the 44-9 probe. Rare!