A novel layered indate-germanate InGe(2)O(5)F(dap) x 2 H(2)O (1, dap = 1,2-diaminopropane) has been hydrothermally synthesized and structurally characterized. Its structure consists of Ge(4)O(10)F(2) clusters and In(2)O(6) dimers, which are interconnected to form 4- and 6-ring layers. 1 displays luminescent emission at 422 nm.