Pegmatite outcrops are one of the primary sources of lithium in the world. While not all pegmatite deposits contain economic deposits of lithium, there is a strong correlation between the two.
Pegmatites are igneous rocks that are formed from the slow cooling of magma. They are typically enriched in rare elements and minerals due to their slow cooling and crystallization process. Lithium is often found in pegmatites because it is a relatively rare element that is concentrated in the crystal structures of certain minerals, such as spodumene and petalite.