I just go to TSC (Tractor Supply) and buy brown mineral salt in a 50 pound bag for about $8. It has six different minerals added to it. It is listed on the bag for a bunch of different domestic animals. The deer really go for it. I believe it has Big Six in its name. A bag lasts me for a couple of months. I go once a week or two all year and sprinkle my salt licks with it to keep them fresh. I have three on the land I hunt. Two or three weeks before season opens, I switch to plain white salt. That is legal to hunt over here in Alabama.
This is a picture of 13 deer around one of my salt licks. It started out as a mound. Now it is a hole.
This fellow was at one of my other salt licks.
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.