Chunk of Pegmatite (IMAGE) Duke University Caption An example of the granite-like rock called Pegmatite, from which lithium is recovered after mining. The lithium at Kings Mountain primarily exists in pegmatite, bound to a green-tinged mineral called spodumene. Credit Gordon Williams/Duke NSOE Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.