Lexicon

Marble analysis, 8425

Portrait of a young woman ('Julia Titi')


White marble
Marble origin: Carrara (Italy)

 

Two samples were analyzed: 8425, ad 8425 I
Mineralogy: calcite
Texture: heteroblastic
Maximum grain size (MGS): 0.54 mm (8425) ; 0.37 mm (ad 8425 I)
δ18OV-PDB: -3.28 ‰ (8425); -1.40 ‰ (ad 8425 I)
δ13CV-PDB: 1.80 ‰ (8425); 2.43 ‰ (ad 8425 I)
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, Marmara, Aphrodisias, Naxos, Göktepe, Afyon) 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, 2016)