Mineral Logic US

7136 East 'N' Ave.,

Kalamazoo,  MI 49048

269 552-9436  |  800 342-6960 

Mineral Logic Europe 

Lijsterbeslaan 73

Delft, 2612 TX, Netherlands


+31.15.750 38 72

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Four Facts on Humate and Fulvic Acid Sources

February 9, 2017


Whenever you sell a product, you are putting your reputation on the line because the customer assumes you have the facts and research to back up your statements about the quality and features you guarantee.


Those facts often are hard to come by in the business of selling fulvic and humic acid amendments because there’s so much unreliable information on the internet today about their original humate sources.


To cut through the misinformation, here are a few facts on humate sources that you may find useful as you market your products:


  • All commercial humate sources do not provide the same product because humates themselves aren’t a defined mineral. Sandia National Laboratories, a highly regarded research facility funded by the federal government, defines humates as naturally occurring organic substances found in coal, lignite, shale, claystone and mudstones. Depending on where they are found, commercial humate sources differ markedly in the percentage yields and types of humic and fulvic acid, as well as other important organic compounds. 

  • Humate sources are spread throughout the United States in very different geological formations. The largest commercial sources for humate are found in New Mexico, Utah, North Dakota, Wyoming and Texas, where humate sources are largely associated with nearby seams of coal and may be a byproduct of strip coal mining. Some of these operations extract Leondardite, the name given to a form of highly oxidized, low grade lignite coal. Some companies in Florida and Georgia extract humates as a byproduct of mining rutile sand. Finally, a few companies get their humate in Mississippi from shale and mudstone that formed from the prehistoric sea sediments, not directly related to coal or rutile sand.

  • Each humate source yields a different percentages and types of humic and fulvic acids, as well as other key organic compounds. As you would expect, all commercial humate mining operations do not provide the same quality of products due to the geology of their mines, and the fact that some of the products’ value may be destroyed by improper mining or processing. Hu