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Zeolites are microporous minerals with a well-defined crystalline structure. They belong to a group of natural alumosilicates. Generally they contain silicon, aluminium and oxygen in their framework and cations, water and/or other molecules wthin their pores. The word 'zeolite' consists of two parts: 'zeo' - boil, and 'lithos' - stone ('boiling stones'). This term was originally coined by Axel Fredrick Cronstedt, a Swedish mineralogis in the 18th century. He observed that upon heating a natural mineral rapidly, the stones began to dance about as the water evaporated.

Clinoptilolite is the most abundant member of the 48 minerals in the zeolite group. Its approximate empirical formula is (Ca, Fe, K, Mg, Na)3-6Si30Al6O72.24H2O. Typical mineralogical composition: 95% Clinoptilolite, minor amounts of feldspar and smectite.

Price: £110.00 Qty:

Product Description

Clinoptilolite, a natural zeolite, with approximate empirical formula:
(Ca, Fe, K, Mg, Na)3-6Si30Al6O72.24H2O
A beige coloured powder.

Mineralogical Analysis (Typical data)

Clinoptilolite 88-100%
Other Zeolite 0-5%
Cristobalite 0-5%
Tridymite 0-5%

Chemical Composition (Typical data)

SiO2 65-72% As < 30 ppm
Al2O3 10-12% Cd < 0.6 ppm
CaO 2.4-3.7% Pb < 60 ppm
K2O 2.3-3.8% Hg < 0.1ppm
MgO 0.9-1.2%
Fe2O3 0.7-1.9%
Na2O 0.1-0.65%
MnO 0-0.08%
P2O5 0-0.03%
Cr2O3 0-0.01%
LOI 9-14%

Physical Properties (Typical data)

Colour: Beige

Bulk Density 0.50 0.55 MT/m3

Cation Exchange Capacity 1.5 1.9meq/g

Micropore Area 11m2/g

Mesopore Area 29m2/g

pH: 7.0 - 9.0

The reason zeolites are now attracting so much interest lies in their strict crystalline structure with minute channels running in different directions which have a negative charge allowing the absorption and adsorption of heavy and radioactive metals and numerous toxins.

One of the most interesting properties of zeolite is selective ionic exchange between the chemical elements in its structure and the environment they are in. This is what can be called an "intelligent" ionic exchange.


Nowadays zeolite is used in agriculture in Russia in animal feeds with the purpose of strengthening the immune system of farm animals, regulate metabolism, prevent gastro-intestinal infection. The result is healthy offspring, healthy growth, good overall health. They have also demonstrated increased fertility and the birth of healthy offspring in a large number of studies on animals.

Disclaimer: please be advised that according to the EU regulations, zeolite, clays and clay-like substances are not regarded as food products, and we are not selling or marketing them as such, but simply as minerals. Clays or minerals are not being sold by us as medicines or food supplements. We do not provide diagnosis or advice. If you have any medical problem, please consult your medical practitioner. Do not resort to self-treatment.