Zeolite History
For How Long Has Zeolite Been Used
•
B.C. — Used in Roman Aqua Ducts to purify water
•
1760s — Rediscovered by a Swedish mineralogist
•
1960s — Mentioned in scientific circles in Europe and
the U.S.
•
1970s — Used for wastewater ammonia removal and
Chernobyl radioactivity removal
•
1980s — Used to clarify pool water in Europe and
then in USA
•
1990s — Used in agriculture and with cattle and
poultry and began to be sold as a supplement for
detoxifying the human body
•
2000s to present — Many companies are now
marketing zeolite in numerous products
The Origin of Zeolite
Zeolite Sources
Zeolite is mined from
zeolite deposits, then
crushed and cleaned.
Our Zeolite sources are
in the United States.
These zeolite deposits
are among the highest
quality in the world due
to their high cation
exchange capacity,
purity, low clay content,
low sodium content,
homogeneity, and
hardness.
Zeolite begins as volcanic ash that is spewed into the atmosphere during violent volcanic
eruptions. Ash plumes can travel thousands of miles before they are deposited on the earth’s
surface.
Where Do Zeolites Form
In nature, zeolites are often formed where volcanic rock of specific chemical composition is
immersed in water so as to leach away some of the components. Composition and pore size, of
course, depend upon what kind of rock minerals are involved.
Rediscovery of Zeolite
•
Although Zeolite was known to the
Roman empire and used to purify water
back then, the knowledge of zeolite was
lost to mankind with the demise of the
Roman empire.
•
Zeolites were rediscovered and
described in 1756 by Cronstedt, a
Swedish mineralogist.
•
About fifty different natural zeolites are
now known and more than one hundred
and fifty have been synthesized for
specific applications such as industrial
catalysis or as detergent builders.
•
Clinoptilolite (the one used in our products) is a naturally occurring zeolite, formed by the
devitrification (ie the conversion of glassy material to crystalline material) of volcanic ash in
lake and marine waters millions of years ago.
•
It is the most researched of all zeolites and is widely regarded as the most useful.
•
In common with other zeolites, Clinoptilolite has a cage-like structure consisting of SiO
4
and
AlO
4
tetrahedra joined by shared oxygen atoms.
o
The negative charges of the AlO
4
units are balanced by the presence of exchangeable
cations - notably calcium, magnesium, sodium, potassium and iron.
o
These ions can be readily displaced by other substances, for example heavy metals
(mercury, lead, cadmium, etc..) and ammonium ions. This phenomenon is known as
cationic exchange, and it is the very high cationic exchange capacity of Clinoptilolite
which provides many of its useful properties.
o
Being a naturally occurring mineral, the precise composition of Clinoptilolite is subject
to a degree of variation. However, an approximate empirical formula is (Ca, Fe, K, Mg,
Na)3-6Si30Al6O72.24H2O. The Chemical Abstracts Service (CAS) Number for
Clinoptilolite is 12173-10-3.
Toxins check in… but they don’t check out!