An Unbiased View of Paraiba Tourmaline
, the sodium iron (divalent) endmember of your group. It may well account for ninety five% or more of all tourmaline in mother nature. The early historical past in the mineral schorl displays the identify "schorl" was in use prior to 1400 simply because a village recognised today as Zschorlau (in Saxony, Germany) was then named "Schorl" (or minimal