Tourmaline is birthstone for October born along with opal. Tourmaline also the gem of eight anniversaries.
Tourmalines come in a wide variety of exciting colors. In fact, tourmaline has one of the widest colour ranges of any gem species, occurring in various shades of virtually every hue.
Many tourmaline colour varieties have inspired their own trade names:
Rubellite is a name for pink, red, purplish red, orangey red, or brownish red tourmaline, although some in the trade argue that the term shouldn’t apply to pink tourmaline.
Indicolite is dark violetish blue, blue, or greenish blue tourmaline.
Paraíba is an intense violetish blue, greenish blue or blue tourmaline from the state of Paraíba, Brazil.
Chrome tourmaline is intense green. In spite of its name, it’s colored mostly by vanadium, the same element that colours many Brazilian and African emeralds.
Parti-colored tourmaline displays more than one colour. One of the most common combinations is green and pink, but many others are possible.
Watermelon tourmaline is pink in the center and green around the outside. Crystals of this material are typically cut in slices to display this special arrangement.