Blocks by Bovatec and Safe-Guard are a dark smoky-brownish colour.
They are not and never have been. Ephedrine is not found in medicated salt blocks.
NaCl. That's it: just plain table salt. And there really is no such thing as a "medicated" salt block.
Nowhere. These type of blocks do not exist.
None because no such block exists.
Safe-Guard makes dewormer salt licks to combat various parasites that infect cattle. Bovatec makes salt licks with lasalocid sodium for the purpose of helping increase the rate of gain for pasture stocker/slaughter/feeder/replacement cattle. These two brands are the only known "medicated" salt blocks that is made for livestock; all other salt blocks are not medicated and are primarily of trace mineral, iodine, cobalt and iodine or iron, cobalt and iodine. None of these other blocks are termed "medicated." Also, there is no known company that makes salt blocks with ephedrine or any other drug other than the dewormer medicine made by Safe-Guard and increase ADG by Bovatec. Please see the related links and questions below for more info.
Salt licks are a block made of salt usually used for horses and livestock.
Salt licks are made available for cattle that may be deficient in salt. Most animals do not eat salt unless they need it. Salt licks would not be poisonous to moles - unless that was the only thing they could get with water.
Cow licks may be made of Halite, so, yes, in a way, salt can be made of Halite.
Not sure what love licks are but if they are like salt licks they have a hole in the center. There are metal hangers made to hold salt spools. Check in the Bass Equipment catalogue on line.
Yes! Salt licks are ok for horses of all ages.
Safe-Guard makes a medicated dewormer salt block, and Bovatec makes a medicated block made to increase average daily gain of pasture stocker, slaughter, feeder cattle and beef/dairy replacement heifers. However, no other manufacturer makes any type of medicated salt block that contains the mythical ephedrine that is claimed to be extracted and used for crystal meth.
You can purchase a medicated salt block at your local farm and ranch supply store. Tack and feed stores will also sell them.