Rock Run Phosphate occurrence, Wolfden Mountain, Rock Run, Cherokee County, Alabama, USA
Width of field is 2.5 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (27 exposures). Equipment: Nikon D-100 on a homemade microscope. Dufrenite occurs mixed with kidwellite in specimens from Indian Mountain.
© 2008 by Jesse Crawford
Radiating crystallized black dufrenite is rich throughout this 5.1 x 4.7 x 1.6 cm matrix. Ex Steve Pullman collection.
© Dan & Diana Weinrich Minerals