Starscream by Bibipako.
Every colour of the rainbow in various shades are represented by Fluorite samples. They range from white, black, to clear crystals.
The most common colours are purple, blue, green, yellow, or colourless. Less common are pink, red, white, brown, and black.
Kutnohorite – Wessels Mine, Hotazel, Kalahari Manganese Field, Northern Cape Province, South Africa
Cybertronian Database 