PURE VERSATILE NATURAL ZEOLITE		A WHOLLY OWNED SUBSIDIARY OF UNITED STATES ANTIMONY CORPORATION 406-827-3523 or tfl3543@blackfoot.net

BRZ™ GENERAL INFORMATION
 

“Zeolite” refers to a group of minerals that are basically hydrated calcium potassium sodium aluminosilicates in
which the water is held in cavities in the lattice.  The lattices are negatively charged and they loosely hold
cations such as calcium, sodium, ammonium, and potassium and also water.  Their ability to exchange one
cation for another is known as their “cation- exchange capacity” or “CEC.”  Cation-exchange capacity is a
measure of the number of cations per unit weight available for exchange, usually expressed as milliequivalents
per 100 grams of material.  The zeolites are also referred to as “molecular sieves”, because the channel
ways within the crystalline structure are extremely small and they can be used to separate large molecules
from smaller molecules.

The Bear River Zeolite deposit is located in southeast Idaho, and it is convenient to two railroad lines and major
interstate highways. Bear River Zeolite Company (“BRZ™”) is a wholly owned subsidiary of United States
Antimony Corporation (“USAC”) of Thompson Falls, Montana. Although the reserves have not been drilled,
dozer cuts and outcrops indicate a geologic resource of more than 200,000,000 tons. Mining is by open pit
methods. The processing plant consists of crushers, blenders, dryers, screens, and baggers to make various
products.

• BRZ™ is almost pure clinoptilolite with a general formula of (Na, K, Ca)_2-3Al₃(Al, Si)₂Si₁₃O_.12H₂O.
  The balance is primarily opaline or non-crystalline silica.
• It contains approximately 3.5% potassium which is a plant nutrient
• It contains approximately 1.6% calcium which is a pH buffer for soils and plant nutrient.
• It contains less than 0.5% sodium, which is toxic to plants. None of the sodium is water soluble.
• When loaded with ammonium cations, it becomes a fertilizer.
• No significant concentrations of toxic trace elements exist. No trace metal elements are soluble.
• When dry, BRZ™ is light green. When wet the color is darker green.
•  It holds up to 55% of its weight in water.
• It has a high cation exchange capacity (“CEC”) of 160 to180 meq/100 grams.
• The high CEC allows the BRZ™ to be loaded with 1.8 to 2.1% nitrogen as ammonium.
• A low clay content makes BRZ™ non-clouding in water and also low dust.
• It has a very large surface area that is approximately 24.9 square meters per gram.
• It is hard and resistant to attrition.
• BRZ™ has good oil adsorption qualities
• The deposit is less than 1 mile from a paved road, approximately 6 miles from a railroad, and convenient
  for overseas shipments.

·                     - It weighs 55 pounds per cubic foot

·                     - It is hydrophilic

ENVIRONMENTAL CLEANUP
 

The cation exchange capability of BRZ™ makes it an excellent candidate for the clean up of oil, diesel, and gasoline; PCBs; soluble heavy metals such as mercury, chromium; lead, zinc, arsenic, molybdenum, nickel, cobalt, antimony,
silver, and uranium from water;  feed lots; leaching of nitrogen fertilizers into the groundwater; organically
polluted water; acid mine drainage; smelter slags; metal contaminated blast sand; metal plating sludge; contaminated soils; solidification and stabilization of hazardous waste; oil refinery and oil field sludge; leach
residues;  batteries, possibly MTBE and various other organic toxins, and radioactive nuclides such as Sr⁹⁰, Cs¹³⁷.
 

SOIL AMENDMENT

The ability of BRZ™ to hold ammonium and its high potash content, low sodium content, and ability to hold
water make BRZ™ an excellent soil amendment for golf courses, sport fields, parks, common areas, lawns, gardens, all sandy soils, and agricultural applications.
 

FERTILIZER
 

The ability of BRZ™ to load with 1.8 to 2.1% nitrogen in the form of ammonium in its crystal structure makes it
excellent for fertilizer applications. The nitrogen is not water-soluble, but it is plant accessible. The zeolite
holds the nitrogen in the root zone of the plant. In typical nitrogen fertilizer applications, as much as 35 % of
the nitrogen leaches out of the growth zone and reports to the aquifer to create nitrite and nitrate
contamination. Consequently, the zeolite reduces the amount of nitrogen needed. BRZ™ contains
approximately 3.47% potassium, which is an important nutrient in fertilizers. The zeolite holds at least 55% of
its weight in water that protects the plant against drought. Zeolites have been successfully used for
golf courses, sports fields, parks and commons areas, and high value crops.

      WATER FILTRATION and WASTE WATER TREATMENT

Zeolites are used as a filter media for particulate removal.  Additionally, they are used to remove nitrogen,
certain organic hydrocarbons, and toxic cations such as silver, mercury, nickel, chrome, cobalt, antimony,
arsenic, etc. Typical applications would include swimming pools, municipal water systems, and
waste water treatment plants.
 

      AIR FILTRATION

Zeolites have been used for the separation of gases such as nitrogen, carbon dioxide, sulfur dioxide, and
hydrogen sulfide. Typical applications would include: enriched oxygen supplies for steel mills,
smelters; re-oxygenation of downstream water from sewage plants, smelters, pulp and paper plants,
fishponds and tanks; removal of carbon dioxide, sulfur dioxide, and hydrogen sulfide from sour
natural gas; removal of carbon dioxide, sulfur dioxide, and hydrogen sulfide from methane
generators such as organic waste, sanitary landfills, municipal sewage systems, animal waste
treatment facilities; the removal of sulfur dioxide from stack gases such as coal generating plants
(to limit sulfur dioxide emissions to 100 ppm for EPA standards); coal gasification from underground
sources for the removal of nitrogen and sulfur dioxide.
 

AQUACULTURE, TANKS, PONDS
 

Zeolites are used for the removal of ammonium from water fisheries, trucks to transport fish, and aquariums.
The addition of zeolite to ponds and tanks often stops or inhibits the growth of algae by removing nitrogen from
the water.
 

CATALYSTS AND PETROLEUM REFINING
 

Although most of the zeolites used in the petroleum industry are synthetic, more natural zeolites are being
used. Typical applications include removing water and carbon dioxide from gaseous hydrocarbons,
removing hydrochloric acid from gas streams, assisting in hydrogen or chlorine drying, assisting in
chlorinated and fluorinated hydrocarbon purification, catalysis and natural gas separation.

      BUILDING APPLICATIONS

Typical building applications include dimension stone, lightweight aggregate, and pozzolan.

BRZ has tested favorably in 28 day strength tests for Portland Cement.

      CARRIERS

Clinoptilolite can be used as a carrier for insecticides, pesticides, and herbicides due to its large porosity.
In animal feeds it is used as a carrier for antibiotics, enzymes, and other medicines.

      DESICCANTS

Clinoptilolite has been used as a desiccant for drying natural gas, carbon dioxide, freon gas, and organic

chemical streams such as transformer oil and xylene.

The statements and methods presented about the products mentioned herein are based upon the best
available data and practices known to Bear River Zeolite Company at the present time, but are not
representations or warranties of performance, results or comprehensiveness of such data, nor do they
imply any recommendations to infringe any patent or any offer of license under any patent.