Color: Purple with a shift to bluish-purple depending on the light source
Treatment: None, guaranteed natural color. Not heated!
Note: This is a huge, natural Cuprian Elbaite Tourmaline from Mozambique with a scarce true purple color! Heat treating this stone "will" produce a neon blue to blue-green color, and most purple cuprian Tourmalines are heated to change the color.
This gem is extremely collectible in its natural state, and the color is truly special.
