The inorganic natural-occurring substances with a definite chemical composition are known as minerals. The classification of the minerals is done based on the chemical composition. Based on this classification, they are of two types, namely the silicates and the non-silicates. The silicates are the minerals that contain oxygen and silicon. The non-silicates are the minerals that do not contain silicates.
Hence, the answer is 'non-silicates'.