Terbium is a relatively resistant, sparsely toxic lanthanoid. It has some special technical applications, especially in optoelectronics. Terbium(III)-ions can fluoresce very good in green and yellow, so terbium is used in in CRT television sets, similar to europium.
Terbium metal element 66 sample casted in acrylic cube
Cube's dimensions: 50x50mm
Material: High Quality Polymers
Technology: Laser Engraved Name and Symbol colored (Black); Self-standing cube, the first cube which is realized in way to be placed in the side of any observer, Nova Elements patented ®