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X‐Ray Spectroscopic Studies of Azurite Mineral
Author(s) -
Hemachandran K.,
Chetal A. R.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221320222
Subject(s) - copper , divalent , mineral , crystallography , spectrograph , x ray , chemistry , absorption edge , materials science , physics , optics , organic chemistry , spectral line , optoelectronics , astronomy , band gap
The K‐absorption of copper in azurite and in some copper systems is studied using a Gauchois‐type X‐ray spectrograph. It is established that copper is in the divalent state and behaves as a cation in azurite. The two structures, B and C, observed in the Cuk edge of the mineral are assigned to the transitions 1 s → 2a 2u and 1 s → 3e u on the basis of the molecular orbital theory.
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