Goethite on quartz - Pike's Peak, Colorado, USA
A small and very aesthetic piece composed of goethite "spray"...
Interesting specimen of goethite. In the foreground, we can see the fibroradial structure of the goethite, and less prominently, the bright, mamelinated goethite. Former Y. Delqué.
7,2 x 5 x 4 cm.
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A small and very aesthetic piece composed of goethite "spray"...
Pyrite accompanied by green ludlamite from the old Salsigne...
The siderite is crystallized around a vertical axis. A little...
Goethite, very finely crystallized on the surface, with...