UJ researchers find exotic micro-mineral compounds in Hypatia stone: UJ researchers make interesting discovery in Hypatia stone Researchers at the University of Johannesburg (UJ) have found exotic micro-mineral compounds in the ‘Hypatia’ stone that are not known to occur on Earth, elsewhere in the solar system or in known meteorites or comets. Professor Jan Kramers and Dr … [Read more...] about UJ researchers find exotic micro-mineral compounds in Hypatia stone