Fluorite
Fluorite exists in a rich variety of colours: green, blue, purple, yellow, purple, rose and colourless, and multiple colours may exist in a single crystal. Often irradiated or heated to enhance colour. Hardness: 4 (Mohs).
Fluorite exists in a rich variety of colours: green, blue, purple, yellow, purple, rose and colourless, and multiple colours may exist in a single crystal. Often irradiated or heated to enhance colour. Hardness: 4 (Mohs).