Dolomite as a feed

It might be an australian thing, but has anyone fed dolomite? It was recomended to me but I'm wondering what it does?
Thanks in advance

Yes, but its used as a supplement not a entire feed .
It supplements calcium mostly .
Very good if your horse is on bad pasture that has an uneven balance of calcium and phosphorus and even then you would only feed 1-2 table spoons.

Ok, thankyou. It amazing what you can learn just by asking a simple question...

Hmmm im sure dolomite is what I usally feed to calves with scours...never heard of feeding it to horses....haha id ask a vet first...