Description
A rich, old-time and showy specimen of the RARE sulfate, Kröhnkite, from the TYPE LOCALITY, the Chuquicamata Mine of Chile. Without question, this specimen exhibits the most intense teal blue colour I have ever seen in a natural mineral specimen and has great translucence! And the variation in blue colour, in itself, is very noteworthy. The veins exhibit what is classic for the species, lamellar growth of crystals in parallel bundles. Rare material, hard to come by nowadays. Ex Dr. Wilke collection.