Tourmaline

Tourmalines are available in the widest colour ranges of any gem, including the remarkable intense violet to blue gems a favourite of mineral collectors.  Tourmaline’s colours have any different causes. Traces of iron, and titanium induce green and blue colours, while manganese produces reds, pinks and yellows.  It’s the only gem that crystalises in a triangular prism Watermelon Tourmaline is green on the outside and a delicious pink on the inside.

Tourmaline is a birthstone for October, along with Opal, and is also the gem of the 8th anniversary.