NF13AL3: Botryoidal and stalactitic growths of Goethite with variegated metallic iridescence, with reddish, blue and green tones dominating. The specimen comes from one localized find in a mine currently on land with no access, so we do not foresee that any new specimens will be obtained.
La Lapilla Mine, La Lapilla, Alosno, Comarca El Andévalo, Huelva, Andalusia Spain (2009)