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You are here: Index TourmalineAny of a group of minerals found in transparent or coloured (pink, blue, green or black) crystalline form in granites and gneisses. Properties Etymology French, from Sinhalese toramalli, carnelian. Origin of the word Tourmaline at Etymonline.com (currently empty) General Reference Tourmaline at Wikipedia Images Google Image Search for Tourmaline Yahoo Image Search for Tourmaline You are here: Index
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