Copiapite
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Copiapite is a hydrated iron sulfate mineral with formula: Fe2+Fe3+462·20. Copiapite can also refer to a mineral group, the copiapite group.
Copiapite from the Bolesław Mine, Kłodzko District, Lower Silesia, Poland
Lustrous, micaceous crystals of copiapite to 8 mm on matrix from the Alcaparrosa Mine, El Loa Province, Antofagasta Region, Chile (sample size: 11.9 × 7.4 × 4.0 cm)
Botryogen
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Botryogen is a hydrous magnesium sulfate mineral with formula: MgFe3+2·7H2O. It is also known as quetenite.
Specimen from Mina Santa Elena, Alcaparrosa, San Juan, Argentina with a red colored crystal of botryogen in a matrix of butlerite, copiapite and parabutlerite (size:5.7 x 4.1 x 2.5 cm)