Dolomite, otherwise known as dolostone in some areas, is a ground powder feed additive that has multiple uses such as an antidote for copper poisoning (one teaspoonful given orally), an essential supply of calcium and magnesium for healthy bones and teeth, and as a preventative of mastitis as well as numerous other mineral deficiency based conditions. As with any mineral or feed additive, you should consult your veterinarian or local agricultural extension agent to discuss the need for increased levels of magnesium and calcium in your area. While dolomite is a very good product that can help to increase milk production as well as quality in dairy herds, too much can be as detrimental as too little.
A frequent question and concern that I receive: "Is Dolomite the same as limestone that I can get from my feed store?" Answer - yes and no, more likely no. Dolomite is similar to limestone yes, but not all limestone is the same. True Dolomite in the sense that it is intended for use, largely popularized in Pat Coleby's 'Natural Goat/Horse/Cattle Care' series of books, is comprised of calcium and magnesium. There are a number of limestone mines throughout the world, but in particular in the United States, within the midwest and in the west. The primary difference between Dolomite and Limestone is that true Dolomite contains both Calcium and Magnesium whereas Limestone is primarily Calcium Carbonate.
Many of the mines in the midwest are known to contain levels of lead (as evidenced by the number of lead mines throughout that region). There are also certain areas where the mines contain less (if any) magnesium in the limestone and the magnesium plays an essential role in the use of Dolomite on animals. The Dolomite I sell comes from lead free mines and has the proper 2:1 and 3:1 balance of Calcium to Magnesium. If your feed store sells limestone, ask them (one of the obviously educated and wiser employees) if it has magnesium in it - chances are they will tell you it is a "calcium supplement".
Another common question concerns the consistency of limestone. There are a number of suppliers who sell Dolomite in a more granular form than the actual fine powdery dust that is characteristic of the mineral. More often than not, limestone is sold as Calcium Carbonate and will not meet the true specifications of Dolomite.
It took me a few years to get the facts straight on Dolomite and in large part, thanks to Pat Coleby's reference to Dolomite in her books, people went on a wild goose chase to find this mineral which is called Dolomite in the UK and Australia, but referred to as Limestone in the United States. It's not Wyoming Bentonite. It's not Calcium Chloride or Calcium Carbonate, Hydroponic Lime or Oyster Shell, it's Dolomite! Again - not all Dolomite or Limestone or however you refer to it is the same.
NOW AVAILABLE - Dolomite Pellets. If you've been using our powdered dolomite, you may want to check out our dolomite pellets too!
A manafacturers specification sheet is available through this .pdf file.
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