Goethite

La Quille du Roy, Montredon-Labessonnié, Le Haut Dadou, Castres, Tarn, Occitanie  France (2007)

Specimen size: 6.2 × 3 × 2.6 cm = 2.44” × 1.18” × 1.02”
Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”