Goethite in the shape of a stalactia, measuring ± 9.3 x 3 x 2.5 cm. This iridescent and strikingly colorful goethite has a botryoidal shape on the surface that reflects its pink, red, gold, orange and other colors in each direction.
Goethite is usually a boring mineral, but occasionally, like here, it can be incredibly striking. The stalactite has a contact termination, which is typical for these specimens.
The iridescent Goethites of Tharsis are considered among the best in the world. Mounted on a methacrylate base.
Tharsis, Huelva, Spain
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