Thorite-(Fe): South Platte Pegmatite Mining District, Jefferson County, Colorado, USA

Species: Thorite-(Fe)

Locality: South Platte Pegmatite Mining District, Jefferson County, Colorado, USA

Dimensions: 4.9 x 3.7 x 2.6 cm.

Ex. Hal Miller Collection

Rich specimen of brick-red crystals and masses of Thorite-(Fe) in matrix from the South Platte Pegmatite Mining District, Jefferson County, Colorado, USA. Measures ~20,000 CPM on my Ludlum Model 3 with the 44-9 pancake probe. Rare!!