Did you know? There are 14 officially recognized varieties of tourmaline. Tourmaline can have different colors from black, green, pink, yellow, light blue, dark blue, and colorless. Some crystals of tourmaline can contain more colors. The most famous type of multiple coloration is the watermelon tourmaline; it typically changes from red to green in a [...]
Continue reading about The other October Birthstone: Tourmaline
