caption: The image shows a piece of galena with sphalerite on a white surface, with the text "Galena with Sphalerites" written on it. The galena is composed of a cluster of small, irregularly shaped stones, each with a unique pattern of black and white crystals. The stones are arranged in a symmetrical pattern, with some of the stones overlapping each other. The text is written in a bold, black font, making it stand out against the white background.