NOT KNOWN DETAILS ABOUT PARAIBA TOURMALINE

, the sodium iron (divalent) endmember of the group. It may well account for 95% or more of all tourmaline in mother nature. The early historical past of the mineral schorl exhibits which the identify "schorl" was in use just before 1400 for the reason that a village acknowledged currently as Zschorlau (in Saxony, Germany) was then named "Schorl" (