I spy, with my little eye,
something that is … blue.
City-born and bred? This will be tough.
Country folk? Run cows? Easy.
We check on the neighbour’s bison while he’s away, clean out the automatic waterer and keep the salt bunk filled.
Common where livestock is raised, salt blocks come in different colours depending on what they contain.
Each 55-pound block has sodium chloride (think table salt, same stuff) plus additional minerals that the feed or range — or the animal itself — may be lacking.
The blocks are colour-coded, each one containing a different array of trace elements and minerals.
The blue contains salt, cobalt and iodine. The brown contains those three plus iron, zinc, copper, molybdenum and manganese. And maybe other stuff, depending on what’s needed. (Aren’t you glad you asked?)
Rain and bison drool puddled the salt in the hole then dried up, revealing the crystals.