Radiation shields and techniques for radiation shielding are provided. Leaded glass is integrated with radiation containment processes. Also, crystalline materials are augmented with heavy metals that are good radiation shields. The crystalline materials are reduced to small particle sizes and treated to prevent the heavy metals from leaching out of the crystalline materials. The treated and reduced particles of the crystalline materials are integrated within a radiation containment processes. Additionally, bitumen substances, such as asphalt or tar, are mixed with radioactive waste, leaded glass, or a radioactive waste and leaded glass composite.