Calcite, Siderite, Limonite
Framont - Grandfontaine area, Schirmeck, Molsheim, Bas-Rhin, Grand Est, France
Calcite on Siderite in limonite, all set on the typical red gangue.
This specimen may have come from the "mine rouge", when it was active (around the beginning of the 19th century).
the crystals of calcite are rare today, during the period of exploitation, it was frequent to find geodes of calcite, siderite, baryte etc ...
Old specimen ...
© Nathaël Bejean