Open AccessStudies of water treatment influence on the structure of vein quartz from shungite rocks
Author(s) -
Yuliya L. Rigaeva,
Н.Н. Рожкова,
T. A. Ekimova
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1093/1/012026
Subject(s) - quartz , impurity , crystallite , vein , rietveld refinement , materials science , mineralogy , analytical chemistry (journal) , crystal structure , scattering , crystallography , geology , chemistry , composite material , metallurgy , chromatography , optics , physics , organic chemistry , psychiatry , psychology
The article presents the results of the research of the structure and composition of one of the morphological varieties of quartz – vein quartz of shungite rocks from Zazhogino deposit of Karelia and a reference quartz sample. The values of the crystal lattice parameters were determined by full-profile analysis (Rietveld method). Coherent scattering region (CSR) for vein quartz samples are determined using the Debye-Scherrer formula after applying the background subtraction function. The influence of water treatment on the content of impurity elements in samples of vein quartz was also studied. The most common impurity elements in natural vein quartz samples, such as Al, Na, Li and Ge, are identified. It is shown that water treatment is effective for reducing the content of impurity elements and obtaining the minimum size of vein quartz crystallites.