An indoor scene captured from a slight downward angle depicts a glass display case containing a large, irregularly shaped mineral specimen

An indoor scene captured from a slight downward angle depicts a glass display case containing a large, irregularly shaped mineral specimen. The specimen is rough-textured, predominantly grayish-white with darker inclusions, and rests on a dark purple or blue mat. A white label below the specimen, written in Cyrillic, identifies it as "Krapya Galena, Sphalerite, Quartz" from "M. Volkan Smolyan, Bulgaria." The display case features a white interior base, an aluminum frame, and a light gray lower cabinet with a black base trim. The floor in the foreground is a speckled terrazzo or mosaic tile. Through the clear glass of the display case, a light blue wall is visible in the background, adorned with a horizontal white heating radiator composed of multiple vertical sections. Reflections on the glass surface show faint outlines of other room elements, including what appears to be a yellow and red object on the right. The scene is located within an institutional setting, likely a museum or university, in the city of Sofia, Bulgaria.