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Tourmaline, the second October birthstone
01 January 2018
If opal doesn’t take your fancy, why not consider tourmaline? Available in a wide variety of colours, tourmaline is a semi-precious gem occurring in various shades of almost every hue.
Tourmaline is mined in Brazil, Sri Lanka, Nigeria, Mozambique, Madagascar, Afghanistan, Pakistan and the U.S.A. Paraíba tourmaline is a vividly colored purplish or greenish blue variety found in Paraíba, Brazil. It’s the most recently discovered, and because of its desirably intense colors, it’s one of the most valuable.
Other common colours of tourmaline include chrome (green), cat’s eye (striped brown),), schorl (black), dravite (yellows and browns) and watermelon (green on the outside and pink on the inside).
While plenty of tourmaline is mined around the world, it’s rare to find fine gem-quality tourmaline in bright colors. This range of material means that the price of tourmaline can vary almost as much as the color.
Tourmaline gems display pleochroism, meaning their color changes when viewed at different angles. In some Tourmaline gems, this effect is hardly noticeable, while in others it is strongly apparent.
With a hardness of 7 to 7.5 on Moh’s hardness scale, tourmaline is a relatively resistant gemstone and is suitable for setting in all forms of jewellery.
Katannuta Diamonds has extensive supplies of all colours of tourmaline, in many different shapes and sizes. Give us a call today to find the perfect tourmaline to fit your jewellery needs.