Salt deposits, Sallent, Bages, Barcelona, Catalonia, Spain
Blue halite cleavage crystal. Jose Luis Larroy collection (Zaragoza).
© Fernando Gascon Cuello
Grain of kaliborite from thsi Catalan mines. From M. MarĂ collection. Analyzed: Mg:K is 2:1
© Joan Rosell. RosellMinerals.com