White to tan-colored, bladed calcite crystals on a matrix of solid granular calcite. This specimen was collected from an unknown limestone quarry in Putnam County, Indiana. As seen in the photograph immediately below, the calcite shows a beautiful pink/red colored fluorescent response under mid wave UV. The size of this specimen is 64 x 30 x 26 mm.
Photograph taken under mid wave UV (302nm).
Photographs taken under other wavelengths:
The calcite is also fluorescent under short and long wave UV, but the responses are less bright. Mouse over the scrolling images above for UV wavelength information.