Grandviewite redefinition, new formula Cu.sub.3./sub.Al.sub.2./sub.(SO.sub.4./sub.)(OH).sub.10./sub.·H.sub.2./sub.O, and crystal-structure determination

0563223 - FZÚ 2023 RIV GB eng J - Článek v odborném periodiku
Sejkora, J. - Steciuk, Gwladys - Marquez-Zavalia, M.F. - Plášil, Jakub - Dolníček, Z.
Grandviewite redefinition, new formula Cu₃Al₂(SO₄)(OH)₁₀·H₂O, and crystal-structure determination.
Mineralogical Magazine. Roč. 86, č. 5 (2022), s. 730-742. ISSN 0026-461X. E-ISSN 1471-8022
Institucionální podpora: RVO:68378271
Klíčová slova: grandviewite * redefinition * Raman and infrared spectroscopy * 3D electron diffraction * crystal structure * Capillitas mine * Argentina
Obor OECD: Mineralogy
Impakt faktor: 2.7, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1180/mgm.2022.59

Grandviewite is redefined on the basis of a restudy of the holotype specimen from the Grandview mine, Arizona, USA, and additional specimens found in the Restauradora vein at the Capillitas mine, northwestern Argentina. Grandviewite from the Capillitas mine forms globular masses up to a couple of millimeters in diameter, formed by very thin platy to acicular lath-like crystals, greenish-pale blue in color, pleochroic (X = colorless, Y = very pale blue, Z = greenish-pale blue), with pale blue streak and silky to a satiny luster. Results of electron-microprobe study and crystal-structure determination lead to the new ideal formula Cu3Al2(SO4)(OH)10.H2O.

Trvalý link: https://hdl.handle.net/11104/0335259