Molecular structure of tangdanite from the Jánská vein, Příbram (Czech Republic) - a vibrational spectroscopy study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F19%3A10134429" target="_blank" >RIV/00023272:_____/19:10134429 - isvavai.cz</a>
Result on the web
<a href="http://www.bullmineral.cz/paper/207" target="_blank" >http://www.bullmineral.cz/paper/207</a>
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Molecular structure of tangdanite from the Jánská vein, Příbram (Czech Republic) - a vibrational spectroscopy study
Original language description
We have undertaken a study of the copper arsenate sulphate mineral tangdanite from the Jánská vein, Příbram, central Bohemia (Czech Republic). Tangdanite has been found on a few specimens and forms individual radial aggregates up to 3 mm in size composed of platy crystals with perfect cleavage. Tangdanite aggregates usually grow on chrysocolla, or more rarely on hematitized rock. The quantitative chemical analyses of tangdanite agrees well with the proposed ideal composition and corresponds to the following empirical formula: Ca1.96Cu9.01Zn0.02(AsO4)4.06(PO4)0.01 (SO4)0.51(OH)8.76.9H2O (on the basis of 11 cations pfu). Tangdanite is monoclinic, space group C2/c, with unit-cell parameters: a 54.3218(8), b 5.5685, c 10.469 Å, β 96.294o, V 3147.7 Å3; due to strong preferred orientation on sample, only a parameter was refined. The interpretation of Raman and infrared spektra of tangdanite are given in the paper. Raman and infrared spectroscopy confirms absence of (CO3)2- groups in the crystal structure of studied tangdanite.
Czech name
—
Czech description
—

Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
10504 - Mineralogy

Project
<a href="/en/project/GA17-09161S" target="_blank" >GA17-09161S: Crystal structures, chemistry and stability of arsenate and sulfate minerals</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)