Numerous and excellent research results in the last 10 years have shown that natural
zeolites have practical use, which is confirmed by a large number of patents, especially for
the two naturally occurring zeolite minerals: clinoptilolite and modernite shown in Figure 1.
The number of patents is substantial for both zeolite types, which gives a clear notice that
the interest of researcher in natural zeolites is strongly encouraged by the commercial sector
covering the use in householdsor in industrial/large-scaleprocesses and treatments.