Description: Goethite Filón Sur open pit (Filón Sur Mine), Tharsis Mines, Tharsis, Alosno, Huelva, Andalusia, Spain 4.4 x 2.1 cm ex Fermin Clemente Very aerial parallel columnar growths with strongly iridescent areas that have a dominant green color with red and blue on the tips and on the base.

All pictures, text, design © Forum FMF 2006-2024