Ooids inside!

Based on the appearance of the rock in the image, it looks like it could be a type of limestone known as oolitic limestone. Oolitic limestone is characterized by its small, spherical or oval grains called ooids, which are visible in the rock's texture. These ooids are typically formed in shallow marine environments and are composed of concentric layers of calcium carbonate.

The rock in the image shows a pattern of small, rounded structures embedded in a matrix, which is typical of oolitic limestone.