A natural solid with insufficient long-range atomic ordering to be classified as a mineral. For example, limonite (FeO . OH . nH2O) is often considered an amorphous “mineral” or mineraloid.
A natural solid with insufficient long-range atomic ordering to be classified as a mineral. For example, limonite (FeO . OH . nH2O) is often considered an amorphous “mineral” or mineraloid.