EA27AF4: A novelty at Sainte Marie-aux-Mines 2017. Aggregates, on Baryte matrix, of very bright cubic Pyrite crystals with very well defined faces and edges and completely coating columnar growths of probably Marcassite twinned crystals.
The specimen has been reviewed, photographed and published as a novelty from Ste. Marie 2017 in the Russian magazine ‘Mineral Observer’ on page 69 in the volume 23, number 1
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (2017)

Specimen size: 7.3 × 5.2 × 5.2 cm = 2.87” × 2.05” × 2.05”

Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”