Lexicon

Marble analysis, 5425

Fragment of historical relief: three men in toga


White marble
Marble origin: Carrara (Italy)

 

Three samples were analyzed: 5425, ad 5425 I, ad 5425 II
Mineralogy: calcite
Texture: homeoblastic
Maximum grain size (MGS): 0.51 mm (5425); 0.58 mm (ad 5425 I); 0.58 mm (ad 5425 II)
δ18OV-PDB: -2.36 ‰  -2.21 ‰ (5425);  -2.35 ‰ (ad 5425 I);  -2.27 ‰ (ad 5425 II)
δ13CV-PDB: 1.75 ‰    2.10 ‰ (5425);  1.75 ‰ (ad 5425 I);  0.77 ‰ (ad 5425 II)
Cathodoluminescence color: brown-orange
Cathodoluminescence intensity: intermediate
Cathodoluminescence distribution: homogeneous

Stable isotope data fall in a zone where different source areas (i.e. Carrara, Hymettus, Paros, Thasos, Marmara, Aphrodisias, Naxos) overlap and the data are inconclusive. However, the MGS, the texture and the orange color of luminescence support Carrara as the origin of this marble. 
 

D. Decrouez & K. Ramseyer (1998, 2018)