Transformation of aragonite to calcite through heating

DTA-TG study on several aragonites was carried out to clarify the transformation of aragonite to calcite through heating process. Aragonite formed in biological system started and completed the transformation at temperatures lower than did aragonite formed in inorganic systems. The DTA-TG study show...

Full description

Saved in:
Bibliographic Details
Published inGEOCHEMICAL JOURNAL Vol. 19; no. 4; pp. 245 - 249
Main Authors Yoshioka, Sayoko, Kitano, Yasushi
Format Journal Article
LanguageEnglish
Published Tokyo GEOCHEMICAL SOCIETY OF JAPAN 01.01.1985
Geochemical Society of Japan
Subjects
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochemistry
Soil and rock geochemistry
Aragonite
DTA data
TGA data
Thermal effects
Transformations
Experimental studies
Calcite
Online AccessGet full text

Cover

More Information
Summary:DTA-TG study on several aragonites was carried out to clarify the transformation of aragonite to calcite through heating process. Aragonite formed in biological system started and completed the transformation at temperatures lower than did aragonite formed in inorganic systems. The DTA-TG study showed that weight loss was observed at the appearance of endotherm for coral aragonite and inorganically synthesized aragonites, where the release of water during heating was recognized. Water contained in aragonite seems to have an important role for the transformation through heating.
ISSN:0016-7002
1880-5973
DOI:10.2343/geochemj.19.245