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Tourmaline
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Type Silicate Mineral
Essential mineral(s) {{{Essential mineral(s)}}}
Accessory mineral(s) {{{Accessory mineral(s)}}}

Tourmaline is a name for a group of minerals that forms in Trigonal crystal shapes. It comes in a variety of colors.

Some of the minerals and rocks under this category are:

  • Dravite
  • Chromdravite
  • Olenite
  • Feruvite
  • Watermelon