21hhdw.g ((SIDDERITE on FLUORITE, CALCITE)), $45 MINIMUM BID, Boltsburn Mine, Rookhope, Weardale, County Durham, UK, 3.5 x 3.5 x 2.5 cm, Miniature | |
Transparent to translucent cubic colorless Fluorite with a dark brown coating of micro crystalline Siderite on one face of each Fluorite crystal. A cluster of white opaque flattened rhombs of Calcite. ex Dana Wilson MD collection. |