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1.- HALLOYSITE FORMATION THROUGH THE "IN SITU" WEATHERING OF VOLCANIC GLASS, FROM TRACHYTIC PUMICES, VICO'S VOLCANO, ITALIA
SEVILLA: E. GALAN, J.L. PEREZ, J. CORNEJO, 1987 MEETING OF THE EUROPEAN CLAY GROUPS. 6/1987-09-07/SEVILLA Ver registro
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