Report on clay research done in the laboratories of the National Faculty of Mines
DOI:
https://doi.org/10.32685/0120-1425/bolgeol14.1-3.1966.173Keywords:
Colombia, X-rays, chemical analysis, mineralogy, exploitation, crushing, pottery, construction
Downloads
How to Cite
Issue
Section
Published
Abstract
Modern clay research is based on the study of the molecular network. X-rays, thermos differential tests, and electron microscopic examinations are used in these studies. Different procedures are carried out for research, microscopic investigation, complete chemical analysis, crushing samples for current mineralogical studies and optically- oriented preparations, sieving, determination of loss on ignition, preparation of test bodies, and the study of ion exchangeability, plasticity tests. Finally, a description is given of the processes carried out and the availability of artifacts to perform them.
The types of clays that were examined were: clay slates and hard clays, Amagá, soft white clays, Tejares clays, El Guayabal, plastic clays, Las Ovejas, decomposed rocks such as Diorites, Andesites, and Filitas. They are mainly used for earthenware, pottery, construction bricks, and others.
References
ADLER, HANS, M. Bray, Ellis E. and Stevens, Nelson P.; Hunt, John M.; Kellar, W. D. and Pickett, E.E.; and Kerr Paul, Infrared Spectra of Reference Clay Minerals, Preliminary Report N° 8, Columbia University, 1950.
DAVIS, D. W. Rockow, T. W.; Rowe, F. G.; Fuller, M. L.; Kerr, Paul and Hamilton, Peggy Kay, Electron Micrographs of Reference Clay Minerals, Preliminary Report N° 6, Columbia University, 1950.
ERECOS. Estudios Generales sobre Materiales Refractarios, 1963.
GRIM, RALPH E. Clay Mineralogy, 1953.
GRIM, RALPH E. Applied Clay Mineralogy.
KERR, PAUL, Kulp, J. Lawrence and Hamilton, P. K., Differential Thermal Analysis of Reference Clay Minerals, Preliminary Report N° 3, Columbia University, 1949.
KERR, PAUL, Main, M. S., and Hamilton, P. K., Occurrence and Microscopie Examination of Reference Clay Minerals, Preliminary Report N° 5, Columbia University, 1950.
KERR, PAUL; Hamilton, P. K.; Pill, R. J.; Wheeler, C. V.; Lewis, Donald R.; Benkhardt, W.; Rene, Duane; Taylor, Garerin, L., Analytical Data on Reference Clay Minerals, Preliminary Report N° 7, Columbia University, 1950.
LANBORN, E.; Austin Chester R.; and Schaaf, Downs; Shale and Surface Clays of Ohio, Geological Survey of Ohio, 1938.
LIPINSKI, BOLLENBACH, Das Keramische Laboratorium.
LIPINSKI, B0LLENBACH, Keramische Reckentafeln.
NIGGLI, PAUL, Gesteine und Minerallagerstatten, 1948.
SALMANG, H., Die Keramik - Physikalishe und Chemische Grunegen, 1958.
SILVA MEJÍA, FRANCISCO, Análisis Termodiferencial de algunos Suelos de Colombia y su Aplicación en la Fertilidad y Clasificación de Suelos. Pub. I.T. 8, 1961.
SMOTERS, w. J. and CHIANG, YAO, Differential Thermal Analysis, Theory and Practice, Ohio Brass Company.
