Nodule from Spor Mountain
By Mineral Resources Program
2016 (approx.)
Detailed Description
Large layered nodule from the Roadside pit, Spor Mountain, Utah, showing fluorite, opal, and bertrandite mineralization. Beryllium is concentrated in the outer opal-fluorite zone; such samples can contain as much as 1-percent beryllium as bertrandite.
Sources/Usage
Public Domain.