- Siderite, Quartz
- Small Cabinet, 8.0 x 4.3 x 4.2 cm
- Georg Mine, Willroth, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
Lustrous, light brown, flattened siderite rhombs with contrasting glassy quartz crystals cover the blocky matrix of massive siderite with quartz on this excellent old-time specimen from the Germany's Georg Mine, Rhineland-Palatinate. Ex. J. Cilen and Robert Whitmore Collections.