👉 The term "palaeocrystallic" is a scientific term that refers to rocks or minerals that are primarily composed of silicate minerals, such as calcite and quartz. These minerals are typically found in the Earth's crust and are highly resistant to mechanical stress and weathering. Palaeocrystals are characterized by their smooth, unstructured surface, which suggests they were formed over millions of years ago. They can be found in a variety of rock types, including metamorphic rocks, igneous