👉 Liocranium is a type of fossilized rock that contains a series of tiny crystals, known as liocrystals. These crystals were formed in the Earth's crust and are thought to have been deposited during the Late Triassic period (246-205 million years ago). Liocranials are characterized by their distinctive appearance, which includes small, irregularly shaped crystals that resemble tiny crystals of ice or glass.
