Andersonite is a rare mineral that occurs in uranium deposits around the world. It is named after the American mineralogist Charles Alfred Anderson who first identified it in 1958. Synonyms for andersonite include uranophane, calkinsite, and kasolite. Uranophane is a yellow to greenish-yellow mineral that is also found in uranium deposits. Calkinsite is a rare mineral that is usually formed as a secondary mineral in copper and uranium mines. It is named after the American geologist Harold Howard Calkins. Kasolite is a yellow to brownish-yellow mineral that is commonly found in the oxidized zones of uranium ore deposits. It was named after the town of Kasolo in the Democratic Republic of Congo.