A blow-molded composite and method of making the same is provided. The process comprises: combining aluminum oxide, metal compound capable of forming spinel phase, and soluble compound of a trivalent aluminum; mixing the combination resulting in in a manner sufficient to form a slurry comprising the aforementioned combination; and processing the mixture of under conditions sufficient to form metal aluminate spinel composition. Such characteristics include the texture, pattern, thickness, drape and translucency, each of which characteristics can be reliably understood and compared.