Marble analysis, 50.397
Sculpture fragment: phallos
White marble
Place of origin: Paros (Paros-Choriodaki) (Greece) or Marmara (Turkey)?
Mineralogy: calcite
Texture: heteroblastic
Maximum grain size (MGS): 1.63 mm
δ18OV-PDB: -1.72 ‰
δ13CV-PDB: 2.98 ‰
Cathodoluminescence color: blue and dark blue
Cathodoluminescence intensity: weak
Cathodoluminescence distribution: heterogeneous
The isotopic values are situated in the Paros and Marmara fields, two marbles with blue luminescence. It seems most probable that this statue was carved from a marble of Paros-Choriodaki, but we do not exclude an origin of Marmara.
D. Decrouez & K. Ramseyer (1998, 2017)
50.397; Sculpture fragment: phallos 
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 160 sec.
Long side of photograph: 3.3 mm 