Galena, Siderite
Tatasí, Atocha Municipality, Sud Chichas Province, Potosí, Bolivia
Pyramidal terminations of galena, with translucent yellowish siderite crystals, in a vug in a galena vein from the Tatasí mine. 10.5cm specimen.
Dr Fritz Berndt collection #83 (Berndt was an ore chemist in Bolivia in the 1950s. The tin sulphide berndtite was named after him.)
© Alfredo Petrov