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Determination of calcite: aragonite ratios in mollusc shells by infrared spectra 1
Author(s) -
COMPERE EDWARD L.,
BATES JOHN M.
Publication year - 1973
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1973.18.2.0326
Subject(s) - aragonite , calcite , calcium carbonate , carbonate , mineralogy , oyster , infrared spectroscopy , shell (structure) , geology , materials science , chemistry , oceanography , composite material , metallurgy , organic chemistry
Calcium carbonate structure in mollusc shells can be determined by infrared spectroscopy. Infrared analysis is easier and less expensive than most other current methods for macroscopic analysis of the structures in gross calcium carbonate. Shell specimens from 22 river species were shown to be entirely aragonite; the composition of two shells of Strombus gigas Linnaeus was primarily aragonite with a thin surface layer of calcite and that of a fossil oyster shell ( Ostrea sp.) was entirely calcite.