This is the same piece of rough green fluorite mined in Ontario, Canada. I took a pic under natural light, back it artificially and then with long wave u.v. light. The pink cube inside is a calcite growth.

Stock photo: This is the same piece of rough green fluorite mined in Ontario, Canada. I took a pic under natural light, back it artificially and then with long wave u.v. light. The pink cube inside is a calcite growth. was taken by beliza .