Tourmaline is a complex group of minerals based on aluminum boro-silicate that come in all the colours of the rainbow. Their value comes from their clarity and the type and intensity of colour. Some colours have specific names including:
• Chrome: Intense green, coloured by chromium and/or vanadium
• Indicolite: Blue
• Paraíba: Electric blue to green, coloured by copper
• Rubellite: Red
• Watermelon: Pink in the centre, green at the edge
• Bi-colour: More than one colour in the same stone
Whatever their colour, they are all gorgeous and we love them all!
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