I recently came across some intriguing specimens near a lake shore in Texas and am seeking your expertise to help identify them. The objects have a few characteristics that lead me to believe they could be fossils, but I would appreciate a more knowledgeable perspective.
Size: Each specimen is approximately 1-2 cm tall and has a thickness of about 1-2 mm. Shape: They have a leaf-like appearance. Color: One side of the specimens is dark brown, while the other side exhibits a pearl-white hue. Location: Found near a lake shore in Texas. Surrounding Geology: The geological context is not yet determined. I have taken multiple photographs from various angles, and have also captured images with a scale for size reference.