Calcite
Probably the most common fluorescent mineral, calcite is a carbonate mineral that can be found throughout the world. Calcite also comes in a variety of interesting habits, or shapes, that can resemble poker chips, dogteeth, flowers, columns, and simple blocks. Those shapes, combined with the array of colors that calcite can fluoresce, makes calcite a very diverse and fascinating fluorescent mineral.
A rainbow of possibilities (LW, MW, SW)
Calcite with non fluorescent franklinite; Sterling Hill Mine, Ogdensburg, New Jersey (SW)
