US Patent 7247075 Golden rhombic pyramid-shaped building blocks

This invention is a set of magnetic building blocks. Each block or piece in the set is in the shape of a right golden rhombic pyramid. There are two important fixed proportions that dictate each block's shape. The first is that the pyramid's base is a golden rhombus. That means the ratio of its long diagonal to its short diagonal is 1.618, otherwise known as φ, or the “golden ratio.”