ncat JP874 Calcite, Pyrite, Goethite, Csódi Hill, Dunabogdány, Szentendre, Pest Co., Hungary

Tiny pyrite crystals part altered to goethite on calcite. There are two generations of calcite. The earlier one fluoresces red, and the later fluoresces white. There is a sharp delineation between the two. Ex Jo Price Collection. Width of view 5.75mm. Stack of 45 images.

Click on the image below for a higher resolution version.