## 3 Results and Discussions
### Petrography
#### 3.5.3 Maps of Elements  
The maps of the chemical elements (Figure 7) offer an image of the non-homogeneous distribution of the chemical elements, indicating, at the same time, the identity of the components that are also confirmed by FTIR and XRD analyses. In the sense of the above-mentioned factors, we further present the mapping analysis and morphological aspect (SEM images) on several areas studied from samples P1 and P2 of the rock fragments. The maps of the elements of the area denoted as P1m-Ch1, which is part of the P1 fragment in massive state, evidence carbon (C) that can be assigned to organic compounds: sulfur (S) in organics, as sulfones, also the sulfates/sulfites of calcium (CaSO\({}_{4}\)/CaSO\({}_{3}\)). Nevertheless, some of the calcium (Ca) in the P1m-Ch1 area may be part of the calcium-aluminum inclusions (CAI), as per the maps of the elements. A grain of a significant size of silicon oxide (SiO\({}_{2}\)) is noticed in the right side of the area, while the silicon in the left side of the area is assigned to Si-OH as a silanol bond to organics. Iron (Fe), similar to nickel (Ni), is in the finely dispersed particles. The very low percentage of Fe and Ni makes it difficult to estimate if they are part of the Kamacite structures (Fe-Ni). The grains of a more significant size are noticed on the iron map. They can be assigned to iron oxides. It is not excluded that some of the iron is involved in chemical structures, such as troilite (Fe-S) and iron sulfate (FeSO\({}_{4}\)) chondrules. The area denoted as P1m-Ch2, also part of the P1 fragment in massive state, exhibits on the maps the disposal of the chemical elements indicating carbon (C) assigned to carbonates (CaCO\({}_{3}\)), but also based on the XRD and FTIR analysis, supposed to be in organics or as adsorbed CO\({}_{2}\). Sulfur (S) can be assigned to sulfates, but also to organic compounds, such as sulfones, when corroborating the maps with the FTIR and XRD analyses. The area mapping P1m-Ch1 provides evidence of calcium sulfate (CaSO\({}_{4}\)). Other than above-mentioned compounds with calcium, the maps of Ca and O, respectively, also indicate CaO as well as possible CAI (calcium-aluminum inclusions). Figure 5: Optical microscopy images: (**a**) P1 sample and (**b**) P2 sample. Figure 6: _Cont_. Thorium (Th) may be assigned as thorium oxides (ThO\({}_{2}\)), as FTIR spectra also indicate (Figure 2). Toilite (Fe-S), lead (Pb) and manganese (Mn) are also noticed. The SEM image of this area of the massive/bulk material of the P1 fragment of rock, shows a high number of large size grains in white color. The fragments of rock P1 and P2 were also analyzed in a powder state obtained by slight pressing due to their friability. Figure 6: SEM images of the different areas on the fragments of rock: P1 sample in the (**a**–**d**) images adnd P2 sample in the images (**e**,**f**). Figure 7: Maps of chemical element distribution on the different studied surfaces. The maps of the elements of the P1-Ch1 area of P1 powder show carbon assigned to be in organic compounds as sulfones and cloudy-disposed carboxylic acids, while calcium (Ca) as oxide (CaO) is disposed in the veins. Particles of silicon oxide (SiO\({}_{2}\)) were finely dispersed on all the studied surfaces, but also grains of significant sizes were noticed, among which the grain in the center of the studied area of P1-Ch1 denotes aggregation in the chondrules pattern. Due to the very low percentage of Mg, Al and Fe, it is difficult to estimate, but the oxides of these elements might be in the area denoted as P1-Ch1. Manganese (Mn) and nickel (Ni) are also noticed. The SEM image of the area shows grains and veins as preserved structures after the fragment of rock was crushed for analysis. This fact confirms the presence of structures with high mechanical resistance, such as a crystal lattice identified by FTIR and XRD analysis.