Amorphous structure and thermoluminescence characteristics of moldavites from Lower Silesia (Poland) and an indochinite from China
Source abstract
Abstract
Tektites provide distinctive evidence of the intricate mechanics involved in impact processes, even though the exact mechanisms behind their formation are still not fully understood. To expand knowledge about the types and differentiation of tektites, we conducted comparative studies of the texture, chemical composition, structure, and luminescent properties of tektites from Central Europe and China. We studied two Moldavites and Indochinite using XRD, FT-IR, microscope with element analysis (LIBS) and 29 Si MAS-NMR. Thermoluminescence (TL) glow curves were measured after beta radiation up to 200 Gy. The analysis focuses on differences in texture, chemical composition, and structure. The structural studies show the presence of water (-OH groups) in Indochinite and its lack in Moldavites. The higher content of silica in Indochinite induces the partial coordination Q 4 units which are not obserwed for Moldavite.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Crystal Structures and Properties · Mineralogy and Gemology Studies · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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