Marble analysis, 6923
White marble
Marble origin: Göktepe (Turkey)
Mineralogy: calcite
Texture: homeoblastic
Maximum grain size (MGS): 0.51 mm
δ18OV-PDB: -2.20 ‰
δ13CV-PDB: 2.80 ‰
Cathodoluminescence color: dark purple
Cathodoluminescence intensity: weak
Cathodoluminescence distribution: homogeneous
Stable isotope data fall in a zone where different source areas (i.e. Paros, Thasos, Marmara, Carrara, Hymettus, Afyon, Göktepe) overlap and the data are inconclusive. However, the MGS, the texture and the dark purple color of luminescence support Göktepe as the origin of this marble.
D. Decrouez & K. Ramseyer (1998, 2017)
6923; Bust of a man 
Microfacies under transmitted light. Long side of photograph: 3.3 mm 
Microfacies under polarized light. Long side of photograph: 3.3 mm 
Cathodomicrofacies, exposure time 240 sec. Long side of photograph: 3.3 mm 