Clinoptilolite is the type of natural zeolite that is most widely used commercially and has high economic significance. Other natural zeolites used commercially are Mordenite and Chabazite. There are a total of 42 types (geologically termed “species”) of natural zeolite, each having different compositions. The natural zeolite of the Castle Mountain deposit is a natural mixture of 85% clinoptilolite and 15% mordenite.
Natural zeolites form in association with volcanic activity. Most natural zeolites of the type in Castle Mountain’s deposit were formed millions of years ago as a result of the reaction of the ashes erupted from volcanoes that fell into specific semi-saline lakes. The process of their formation is called zeolitization. Due to such variations as in temperature - geological location - water to ash ratio – salt content of the lake water during the formation of the zeolites will all provide unique properties into the compositions of each deposit.
The cage like structure of the zeolites provides a sufficiently wide inner and outer area for the ionic exchanges and chemical reactions. The pores inside zeolites encompass a significant proportion of their volume. These pores act as molecular sieves. Naturally zeolites are loaded with negative charge sites and have high ion exchange capacities. Due to their porous structure, hydrophilicity (water loving), and high ion exchange capacity, they have the capability of retaining, adsorbing and absorbing a number of gases and malodours; moisture; petrochemicals, radioactive ions, ammonium ions, some toxins, heavy metal ions. Today, owing to its environment nature construct and low costs, natural zeolite such as Castle Mountain are widely used in a number of industrial sectors, agricultural, horticultural, domestic and several environmental projects.
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What is Zeolite (128 KB)