Gemstone of the WeekWatermelon Tourmaline

Tourmaline is the birthstone for October and can be given as a gift for an eighth wedding anniversary. It develops in one colour or sometimes a mix of colours and there are seven varieties:

Rubellite (red)
Indicolite (blue)
Chrome (intense green)
Bi-color (two or more colours )
Canary (yellow)
Paraiba (blue/green)
Cat's Eye (variety of colours)
Colour-change (changes from green in the daylight to red in false light)
Watermelon (posesses a green skin, white ...

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