165 2014 desert symposium Mojaveite and bluebellite, two new minerals from the central Mojave Desert Stuart J. Mills 1 *, Anthony R. Kampf 2 , Andrew G. Christy 3 , Robert M. Housley 4 , George R. Rossman 4 , Robert E. Reynolds 5 , and Joe Marty 6 1 Geosciences, Museum Victoria, GPO Box 666, Melbourne 3001, Victoria, Australia; 2 Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Blvd, Los Angeles, CA 90007, USA; 3 Centre for Advanced Microscopy, Australian National University, Canberra, ACT 0200, Australia; 4 Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA; 5 220 South Buena Vista St, Redlands, CA 92373, USA; 6 5199 E. Silver Oak Rd, Salt Lake City, UT 84108, USA; *E-mail: smills@museum.vic.gov.au he Mojave Desert in the U.S. Southwest contains thousands of old mines and prospects, the vast majority of which were never economically proitable. However, a few deposits, though they produced little ore, have yielded a note- worthy variety of rare and unusual minerals. One of these deposits is the Blue Bell claims in the Soda Mountains, about 11 km west of Baker, San Bernardino County, California, which has been a proliic producer of micro-crystals of rare species for six decades (Crowley 1977; Maynard et al. 1984; Kampf et al. 2009; Mills et al. 2010; Housley et al. 2011). Importantly, the Blue Bell claims are the type locality for the new minerals luorphospho- hedyphane (Kampf and Housley 2011), plumbophyl- lite (Kampf et al. 2009) and reynoldsite (Kampf et al. 2012b). A little farther east, another world-class mineral locality is found at Otto Mountain, 1.5 km northwest of Baker. Twelve new secondary minerals (Table 1) have been described from this remark- able mineral assemblage. Here we announce two new minerals, bluebellite and mojaveite, which have recently been approved by the International Miner- alogical Association Commission on New Minerals, Nomenclature and Classiication. Fig. 1. Bluebellite with luorite on murdochite pseudo-morphous ater wulfenite (2 mm FOV) from the Blue Bell claims. Fig. 2. Crystals of mojaveite on quartz (1 mm FOV) from Otto Mountain.