Goethite coating Siderite

Mina Peyreblanque, Alban, Albi, Tarn, Occitanie  France

Specimen size: 7.4 × 4.6 × 3.8  cm = 2.91” × 1.81” × 1.50”
Main crystal size: 3.9 × 0.6 cm = 1.54” × 0.24”