Redmond Salt has guaranteed levels of calcium, copper, iodine, iron, magnesium, manganese, phosphorus, potassium, sulfur, and zinc. Over 50 other natural minerals are present (see the chart below for the typical, as well as, the guaranteed table of included minerals).
With no chemical processing or other harmful additives, Redmond Salt is an ideal supplement for all classes of livestock.
It is also easy to handle, and stackable.
Redmond Agriculture says, "Animals instinctively crave salt that has naturally occurring trace minerals. Try it in your herd: put any other salt block next to Redmond’s Trace Mineral Block and see which one your animals choose."
An inside look at the Redmond Agriculture Salt mine:
Ancient Sea Salt and Trace Minerals