An indoor photograph captures a glass-fronted, light-brown wooden display case containing multiple rows of rock and mineral specimens

An indoor photograph captures a glass-fronted, light-brown wooden display case containing multiple rows of rock and mineral specimens. The specimens, varying in size, shape, and color (including shades of grey, black, reddish-brown, purple, and off-white), are arranged on clear glass shelves. Each sample is accompanied by a small white label bearing Cyrillic text identifying the mineral, with examples such as "ФЛУОРИТ (CaF2)" and "ПИРОКСЕН" visibly present. A larger, folded white label on the fourth shelf from the top reads "КЛАС ХАЛОГЕНИДИ" (Class Halogenides). The clear glass front of the display case exhibits reflections. A prominent reflection in the upper-middle section depicts a window frame with four distinct panes, indicating an internal window structure and an external light source. Directly below the window reflection, a dark, unidentifiable silhouette of a person, presumed to be the photographer, is clearly visible, positioned in front of the display. The wooden frame of the display case is observable along the left side and bottom edge of the image. The scene suggests a museum, university collection, or geological exhibition setting in Sofia, Bulgaria.