It has been the find of a lifetime. It had started existence as part of a glacier-like ice moon of the protoplanet Uranus, shattering, melting, and recrystallizing in the primeval eons of relentless bombardment. It had cracked at least four different times, and each time mineral flows had been forced within its fracture zones under tremendous pressure: carbon, manganese silicate, beryllium, aluminum oxide. When the moon was finally broken up into the famous Ring complex, the massive ice chunk had floated for eons, awash in shock waves of hard radiation, accumulating and losing charge in the bizarre electromagnetic flickerings typical of all Ring formations.