Named after Dr. John Casper Branner, an American geologist and former Professor of Geology and President of Stanford University in California, USA. Brannerite is an uncommon mineral that is a primary mineral in granite pegmatites and granitic gneiss, and can also be found in pebble conglomerates, hydrothermal quartz and calcite veins, and as a detrital mineral in placer deposits. Localities for Brannerite include in the USA, Canada, Spain, France, Switzerland, Morocco, South Africa, Australia, and others. Brannerite is strongly radioactive.