Svanbergite
Chizeuil Mine, Chalmoux, Charolles, Saône-et-Loire, Bourgogne-Franche-Comté, France
Extremely rare specimen showing svanbergite crystals in a white matrix from the Chizeuil Mine, Chalmoux, Saône & Loire.
According to Lacroix (Minéralogie de la France, Tome IV, page 594), the white rock in which svanbergite was discovered was an "accident" and an exception in the mine, with an extension of only a few meters.
Today, these ...
© Alain TUEL