B Krishna Mohan / Chennai/ Hyderabad August 26, 2008, 3:00 IST The state may strike it rich if the Andhra Pradesh Mineral Development Corporation (APMDC) succeeds in its efforts in evolving a process for exploring fullerenes, commonly known as C-60 and associated with barytes, from the mines at Mangampeta in Kadapa district. The product is used for defence purposes and makes solar cells more efficient. Besides, it can make missiles invisible to radars. According to studies, about 100 million tonne of fullerene deposits are estimated to be present in the Mangampeta barytes project, the world's largest barytes deposit with about 74 million tonne. "In the international market, a gram of fine grade fullerene fetches $500-2,000. But it is too early to calculate the value of the deposits as we do not have the exploration techniques. It is also not clear what will be the percantage of fullerene after exploration and processing. We will seek international help for tapping the fullerene resource,' said vice-chairman and managing director of the state government undertaking VD Rajagopal. APMDC, through its Development of Mineral Resources and Technology Upgradation Fund set up to promote research and investigations in mineral explorations, has awarded a research programme on fullerenes to the Osmania University, he said. It has entered into MoUs with three mining companies