Tourmaline
Reference: http://www.mindat.org/min-4003.html
Category:Tourmaline
Minerals and Varieties
- Buergerite (category) - black, brown - Pleochroism
- Chromdravite (category)
- Dravite (category) - colourless, blue, light to dark brown - mostly Pleochroism
- Elbaite (category)
- Feruvite (category)
- Foitite (category)
- Liddicoatite (category) - pink, green, green-brown, yellow-brown
- Magnesiofoitite (category)
- Olenite (category)
- Povondraite (category) - black
- Rossmanite (category)
- Schorl (category) - black, blue-black, brown-black - Pleochroism
- Uvite (category) - black, grey, brown, green, red - Pleochroism
- Vanadiumdravite (category)

