JJF6AP8: Very aerial columnar growths with botryoidal Goethite formations in color tones varying from black to yellow. A classic of Spanish mineralogy.
The specimen comes from the collection of Andrés Jiménez Shelly and was previously in that of Martín Oliete Fontela.
La Arboleda Mines, La Arboleda (Zugaztieta), Valle de Trápaga/Trapagaran, Comarca Gran Bilbao  Spain (1965)

Specimen size: 6.2 × 6.1 × 5.9 ×  cm = 2.44” × 2.40” × 2.32”

Main crystal size: 3.4 × 0.7 cm = 1.34” × 0.28”