Iron-rich concretion in sandstone.April 30, 2017/in /by Marli Miller precipitation, fluvial iron-oxide, spherical, sedimentary https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 19:32:582017-09-04 19:19:28Iron-rich concretion in sandstone.
