Other formats:
BibTeX
LaTeX
RIS
@proceedings{1792990, author = {Kubernátová, Monika and Cempírek, Jan}, booktitle = {3rd International Conference on Tourmaline (TUR 2021, Elba, Italy)}, language = {eng}, title = {Crystal chemistry of natural Pb-rich tourmalines}, url = {https://www.tur2021.com/}, year = {2021} }
TY - CONF ID - 1792990 AU - Kubernátová, Monika - Cempírek, Jan PY - 2021 TI - Crystal chemistry of natural Pb-rich tourmalines UR - https://www.tur2021.com/ N2 - Lead is one of the cations with a large ionic radius (1.35 Å) and should therefore enter the tourmaline structure as a divalent cation Pb2+ at the nine-coordinated X‑site. The lead contents typically found in tourmaline are between tens and hundreds of ppm. The observed paragenetic relationships indicate that the Pb-enrichment in tourmaline is related to both albitization of amazonite (in Minh Tien) and its hydrothermal alteration (all studied localities). Formation of Pb-rich tourmaline is not restricted to Ca-rich systems (and Pb- Ca-1 exchange) and takes place also in Na,Li,F-rich tourmalines. Hydrothermal tourmalines may locally reach compositions dominated by the theoretical Pb-analogue of fluor-liddicoatite. ER -
KUBERNÁTOVÁ, Monika and Jan CEMPÍREK. Crystal chemistry of natural Pb-rich tourmalines. In \textit{3rd International Conference on Tourmaline (TUR 2021, Elba, Italy)}. 2021. ISSN~0369-6243.
|