Autunite
Midnite Mine, Wellpinit Area, Springdale Mining District, Stevens County, Washington, USA
Specimens of crystallized autunite from the Midnite Mine exhibit different habits. Most commonly the crystals are tabular and wafer thin. Here is a micromount specimen which shows an unusual blocky habit. EDS analysis by Bart Cannon, Cannon Microprobe, Seattle, WA verifies that copper content is responsible for the zoning seen here. ...
© Saul Krotki 2004