Interesting Erythrite Crystals from Spain

Juan Miguel Segura’s Photo

Erythrite
Formula: Co₃(AsO₄)₂·8H₂O

System: Monoclinic
Colour: Crimson to peach red, ...
Hardness: 1½ - 2½
Member of: Vivianite Group

From La Encontrada Mine, Molvizar, Granada, Andalusia, Spain