RK27F8: Two black, octahedral crystals on matrix. It is not common that one finds examples of this species with good crystal form, especially with such sharp profiles. It comes with a label from Deyrolle (Paris), where he bought it in 1933, which has Sr. Folch’s handwritten notes on it.
Fahlun, Kopparberg  Sweden (±1930)

Specimen size: 5 × 2.5 × 1.8 cm = 1.97” × 0.98” × 0.71”

Main crystal size: 1.3 × 1.5 cm = 0.51” × 0.59”