## 3 Results
### Compositional Analysis (EDX and \(\mu\)-FTIR)  
The EDX analysis of the pigment from _Batca Doamnei_ was carried out on two areas of the pigment, both for the inner layer and for the small outer spots (Figure 13). Thus, a series of elements attributed to aluminosilicates was identified, but also appreciable concentrations of iron (26.3-51.9%), both on the inside red layer of the vessel and on its outer spots (16.7-23.3%), possibly red ocher rich in iron [32]. Appreciable traces of manganese (0.96-1.29%) and sulfur (0.19-0.48%) are also present on both surfaces, these coming from the minerals present in the pigment. The presence of these elements can be connected with minerals such as jarosite (KFe\({}_{3}\)(SO\({}_{4}\))\({}_{2}\)(OH)\({}_{6}\)) and jacobsite (Mn\({}^{2+}\)Fe\({}^{3+}\)\({}_{2}\)O\({}_{4}\)) [51]. Additionally, based on the appreciable concentration of iron, the presence of goethite (\(\alpha\)-FeO(OH)) and lepidocrocite (\(\gamma\)-FeO(OH)) can be assumed, an aspect that is also verified by means of infrared spectroscopy. The elemental composition of the yellow pigment from Silistea--_Pe Cetatuie_ was obtained by analyzing three areas of a lump of mineral sample (Figure 14), identifying elements specific to aluminosilicates and appreciable concentrations of iron (31-50%), manganese (0.33-0.76%) and sulfur (0.12-0.30%). Additionally, in this case, the presence of jarosite and possibly jacobsite is noted. Moreover, the presence of goethite and lepidocrocite is also highlighted. The \(\mu\)-FTIR analysis for the sample from the _Batca Doamnei_ settlement was performed for both surfaces (Figure 15), for the consistent inner layer on the inside and for the reddish spots on the outside. Based on the characteristic vibrational groups, we were able to establish the nature of the compounds present in the pigment. In addition to the peaks attributed to absorbed water [51; 52], such as those in the range 4000-3000 cm\({}^{-1}\) and at 1682 cm\({}^{-1}\), the one specific to kaolinite [46; 51; 53] at 3528 cm\({}^{-1}\) is highlighted. The obvious peaks at 2926 and 2859 cm\({}^{-1}\) correspond to organic compounds that contain C-H bonds [54; 55; 56; 57; 58] and appear only on the inner surface of the container, probably corresponding to some organic components used in the preparation of the pigment that  
Figure 12: CIC L*a*b* colorimetry for the red pigment from Silistea—_Pe Cetätürie_. remained impregnated on the vessel. This aspect also supports the macro- and microscopic observations regarding the preparation of the pigment using an organic binder. Carbonates [59; 60] are visible in the 1300-1500 cm\({}^{-1}\) range, and were identified only on the inner surface by the presence of an intense peak around the 1300 cm\({}^{-1}\). Figure 14: The elemental composition of the yellow pigment from the Silistea—_Pe Celtinuic_ settlement. Figure 13: The elemental composition of the red pigment from the Piatra Neamt—_Bâta Daammei_ settlement. Silicates are represented by the intense peaks at 1984 and 1867 cm\({}^{-1}\), these being more intense in the case of the interior. Additionally, muscovite [61, 62] was identified by the peak at 811 cm\({}^{-1}\), being more visible on the inner surface and more flattened on the exterior one. The presence of feldspars [56] was noticed through the weak peak at 1779 cm\({}^{-1}\), indicating that the pigment used is of a mineral nature, with aluminosilicates in its composition. The flattened peak at 1422 cm\({}^{-1}\) and the medium one at 665 cm\({}^{-1}\) are attributed to jarosite [63], identifiable on both surfaces, and the intense peak at 1152 cm\({}^{-1}\) is attributed to lepidocrocite [64]. The peak at 926 cm\({}^{-1}\) corresponds to magnetite [65], and the peak at 730 cm\({}^{-1}\) can be attributed to goethite [66]. The \(\upmu\)-FTIR analysis of the yellow pigment from Silistea--_Pe Cetituie_ (Figure 16) revealed the existence of similar compounds to those identified in the pigment from B\(\mathrm{\ddot{a}}\)tca Doamnei.