作者: S. Signorelli , C. Peroni , M. Camaiti , F. Fratini
DOI: 10.1180/MINMAG.1996.060.401.13
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摘要: During the study of some decay processes in marble covering facade Florence Cathedral (1870-1887), vaterite was found as principal component bonding mortars inlay decorations. Vaterite is one three polymorphous phases CaCO3 and crystallizes hexagonal system, dihexagonal bipyramidal class (Kamhi, 1963; Sato Matsuda, 1969): it unstable under normal environmental conditions (Deer et al., 1964).