Scandium would be the perfect building metal if only it wasn't so damn rare! Light as aluminum but as strong as steel, scandium out-titaniums titanium as an exotic ingredient in high-tech doodads of the aerospace industry. China, Russia and Australia are the only countries where it is mined but of these only China currently refines it to its pure, metallic form. Our supplier, one of China’s leading exporters, boasts an annual production of less than 400 kilograms. That’s about the weight of a piano.