The image shows three pieces of rock on display in a glass case. The rock on the left is a large, irregularly shaped rock with a rough, uneven surface. It appears to be made of a light-colored material, possibly stone or concrete, and has a greenish-brown color with some areas of red and white speckles. The middle piece is a smaller, rectangular rock, and it is slightly larger than the one on the right. All three pieces are arranged in a triangular formation, with the largest rock in the center and the two smaller ones on either side. There is a blue label on the bottom right corner of the case with Chinese characters written in white.