Manganite

Ilfeld, Nordhausen, Nordhausen District, Thuringia/Thüringen  Germany

Specimen size: 4.8 × 3.4 × 1.9 cm = 1.89” × 1.34” × 0.75”
Main crystal size: 3 × 1.2 cm = 1.18” × 0.47”