Tourmaline: A Stone of Rainbows
Tourmaline has the widest range of colors out of any gemstone species known to man - so wide, in fact, that you could find Tourmaline in basically any shade of any color! Many color families of Tourmaline typically have their own trade name. The name Tourmaline comes from the Singhalese word “tura mali” which means “stone with mixed colors.” Some shades of Tourmaline are often mistaken for Fluorite because both can have the same multi-colored banding in the same piece of stone. All Tourmaline stones display pleochroism, which means the color will shift and change when you look at the stone from different angles. Some stones display this phenomenon very strongly while other stones, it is hardly noticeable. Nonetheless, gem cutters take this into account when cutting the stones so they will be the most beautiful they can be!
Composition
Different colors of Tourmaline directly effect healing properties because their chemical and mineral composition are different from each other. All Tourmaline is made up of silicon, aluminum, and boron, but each color could also contain a different level of a mixture of different elements. Gemologists use these varying compositions to define each species. Tourmaline is a hard and durable stone; it rates 7 to 7.5 on the Mohs Hardness Scale. It is also a pyroelectric material. It attracts dust and other particles when it is warmed!