Skip to Main content Skip to Navigation
Journal articles

Unusual Micrometric Calcite-Aragonite Interface in the Abalone Shell Haliotis~Mollusca, Gastropoda!

Abstract : Species of Haliotis (abalone) show high variety in structure and mineralogy of the shell. One of the European species (Haliotis tuberculata) in particular has an unusual shell structure in which calcite and aragonite coexist at a microscale with small patches of aragonite embedded in larger calcitic zones. A detailed examination of the boundary between calcite and aragonite using analytical microscopies shows that the organic contents of calcite and aragonite differ. Moreover, changes in the chemical composition of the two minerals seem to be gradual and define a micrometric zone of transition between the two main layers. A similar transition zone has been observed between the layers in more classical and regularly structured mollusk shells. The imbrication of microscopic patches of aragonite within a calcitic zone suggests the occurrence of very fast physiological changes in these taxa.
Document type :
Journal articles
Complete list of metadatas

Cited literature [31 references]  Display  Hide  Download

https://hal-insu.archives-ouvertes.fr/insu-01056841
Contributor : Nathalie Pothier <>
Submitted on : Tuesday, June 2, 2020 - 9:29:28 AM
Last modification on : Wednesday, September 23, 2020 - 4:38:33 AM
Long-term archiving on: : Saturday, September 26, 2020 - 12:01:12 AM

File

Dauphin et al abalone shell ha...
Files produced by the author(s)

Identifiers

Collections

Citation

Yannicke Dauphin, Jean-Pierre Cuif, Hiram Castillo-Michel, Corinne Chevallard, Bastien Farre, et al.. Unusual Micrometric Calcite-Aragonite Interface in the Abalone Shell Haliotis~Mollusca, Gastropoda!. Microscopy and Microanalysis, Cambridge University Press (CUP), 2014, 20 (1), pp.276-284. ⟨10.1017/S1431927613013718⟩. ⟨insu-01056841⟩

Share

Metrics

Record views

364

Files downloads

92