Hello PIGs: I've received permission to post this link to a volume of papers on the occurrence, properties, and chemistry of tourmaline: It is with great pleasure that we announce the publication of the special volume of the Journal of Geosciences dedicated to TUR2021: http://www.jgeosci.org/issue-67-2<https://urldefense.com/v3/__http://www.jgeosci.org/issue-67-2__;!!GNU8KkXDZlD12Q!7F3wvFeIVMA2YIHs-Vr4A_dQXqmxW-Q0efOVBaUvqQvZtp3Tg-CvrQUF2vq953MVaUpN3eHLJ0jCvyH0wg2vLEeY1jmu$> Regards The organizing committee of TUR2021 https://www.tur2021.com<https://urldefense.com/v3/__https://www.tur2021.com__;!!GNU8KkXDZlD12Q!7F3wvFeIVMA2YIHs-Vr4A_dQXqmxW-Q0efOVBaUvqQvZtp3Tg-CvrQUF2vq953MVaUpN3eHLJ0jCvyH0wg2vLNhIt7AO$> David London Pegmatite Interest Group: http://www.minsocam.org/msa/Special/Pig/