The body of a letter to Soaring Eagle Ventures from T.J. Clark & Company on May 
8, 1996 states: 
It is important to note that while other companies may purchase products from 
the T.J Clark mine, they are not the original, time-tested formula. We don't know 
what minerals they contain, or in what amounts, or just how effective they are.
Only Eagle supplies Mineral Toddy in the original Clark formula 
and at the original Clark concentration.
  "It has become necessary to publish this letter to clear up a vast amount of 
  confusion that has been generated recently about colloidal mineral products -- 
  what they are, who manufactures them and the differences in sources and quality. 
  A colloid is a particle substance that retains its identity and remains in liquid 
  suspension. Colloids are very small in size and therefore easily absorbed by the 
  cells of the body. Plants convert metallic minerals into this form. Dr. Carey 
  Reams, a well known biophysicist and biochemist, discovered that colloids can 
  get so small they can go through glass. And that even within a colloid there can 
  be a "solar system" of different minerals. They have a natural negative electrical 
  charge. Dr. Reams found that the human body requires 84 of the known 106 elements 
  to maintain optimum health. Many more than is currently recognized. 
  In 1925, a historic discovery was made by Thomas J. Clark, a rancher in Central 
  Utah. Through an unusual set of circumstances the mineral remains of an ancient 
  rain forest, determined by the US. Dept. of Interior to be from the Cretaceous 
  Period, approximately 60 million to 127 million years old, were encapsulated and 
  preserved. The material is humic shale, not bentonite, clay or dried up sea beds. 
  Selections from various parts of the deposit are used to insure a balance of the 
  over 65 various minerals and trace minerals that form the exclusive, premium T. 
  J. Clark product. 
  These rare colloidal plant minerals are extracted with pure, cool clear water 
  to the desired concentration and then processed through a complex array of special 
  filters to allow only the organic colloidal minerals in the final solution. There 
  are no preservatives, flavorings. or synthetic substances added.
  The T. J. Clark liquid minerals have a natural negative electrical charge. 
  This has two very important benefits. One, it greatly increases the transport 
  and bio availability of other nutrients gotten from foods and/or vitamins and 
  other supplements. And two, it will attract toxins and heavy metals from the body 
  and flush them out. Clinical tests done here in the US. and in Germany have verified 
  this.
  Presently, the 70 year old T. J. Clark mine is the only one of its kind that 
  has been discovered. It is owned and operated by the third generation of the Clark 
  family and no other persons or companies have mineral rights to it.
  In an effort to imitate the Clark product and Clark story, there are companies 
  who are using this tape and making false and misleading claims about their products. 
  These companies:
  
    - 
    
Do not have the Clark formula
     
    - 
    
Do not have the proprietary manufacturing methods
     
    - 
    
Are using preservatives and/or adding flavorings and inorganic substances 
    to their mineral products.
     
    - 
    
Are using bait and switch to sell inferior products
     
  
  One such company adds inorganic mineral elements to their mineral products 
  to make a sales point of "higher density". Density has nothing whatsoever to do 
  with the quality or effectiveness of a colloidal trace mineral product, in fact, 
  it lowers it and is misleading. 
  Another company claims it uses "colloidal plant source minerals", yet their 
  product is cloudy and has fine dirt particles floating through it and is flavored 
  to disguise its taste. 
  Minerals in their metallic form can be toxic to the human body. Dangerous levels 
  of these metallic minerals can accumulate in the tissues and create serious health 
  problems. 
  Plant source minerals, produced by the T. J. Clark company are completely non-toxic, 
  and is proven by its 70 year history of positive results with the thousands of 
  its customers, and verified by the following scientific test done in Germany.
  Dr. Fritz-Albert Popp, a biophysicist and professor at the Kaiserlautern University 
  in Germany, developed a very sophisticated and precise method of determining whether 
  or not a substance is toxic or to what degree it is beneficial to live cells. 
  This method accurately measures the actual life energy output of these cells. 
  The T. J. Clark minerals not only tested completely non-toxic, but increased the 
  cell's life energy output beyond what Dr. Popp had established as his optimum 
  output benchmark. He congratulated us on the excellence of the product. No other 
  manufacturer of natural colloidal minerals has this test guaranteeing the safety 
  and effectiveness of their product.
  Thousands of people all over the world are enjoying the benefits of the original 
  premium Clark minerals, and the 3rd generation of the T. J. Clark family is committed 
  to seeing that this standard of excellence is continued. 
  All companies INDEPENDENTto distribute T. J. Clark minerals will be issued 
  a certificate of Authorization by C & M Laboratories Int'l, Inc. and signed by 
  T. J. Clark. Avoid any risk and assure the safety of your customers. Ask to see 
  this certificate -- accept no substitutes. 
  C & M LABORATORIES INT'L INC." 
Only Eagle supplies Mineral Toddy from premium Clark 100% organic 
bio-electrical colloidal minerals in the original Clark formula and at the original 
Clark concentration.