Pic 3 (IMAGE) University of the Witwatersrand Caption A ‘big-tank’ chamber of the Bushveld Complex (a) filled with a resident melt that crystallizes into the UG1 chromitite at the chamber floor as a 3D framework of touching chromite crystals (b). Credit Wits University Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.