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Structural Differences Between Biogenic Amorphous Calcium Carbonate Phases Using X‐ray Absorption Spectroscopy
Author(s) -
LeviKalisman Y.,
Raz S.,
Weiner S.,
Addadi L.,
Sagi I.
Publication year - 2002
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/1616-3028(20020101)12:1<43::aid-adfm43>3.0.co;2-c
Subject(s) - amorphous calcium carbonate , materials science , amorphous solid , calcium carbonate , absorption (acoustics) , x ray absorption spectroscopy , spectroscopy , carbonate , absorption spectroscopy , calcium , analytical chemistry (journal) , chemical engineering , mineralogy , crystallography , optics , metallurgy , composite material , environmental chemistry , chemistry , physics , engineering , quantum mechanics
We compare the organization of the first coordination shells around the calcium ion in biogenic ACC phases from three different sources. The results show that although the three biogenic samples have the same chemical composition, which is referred to collectively under the name “amorphous calcium carbonate”, they are structurally different from one another. These differences may be attributed to the diverse modes of formation of such biogenic materials and may account for their known variations in stability.