Plural: Unknown; currently impossible to determine
This is a nondescript little pouch containing a small measure of black sand. The sand is as descript as the pouch is nondescript.
Item cannot traded, sold, or placed in a memento display
If Rank and Musty Daze is active:
It's obvious the sand is important somehow, especialy with what Bind Mender said, but your head is still buzzing from whatever's going on in the musty daze... dusty maze.
Yeah, it's probably best to leave there for a while until the daze wears off and you're back to your old self.
Without Rank and Musty Daze active:
You pull out the pouch of black sand and try to figure out how to use it. The more you look at it, the more something seems funny about the thing in your hands. You poke, prod, and pull the pouch, trying to figure out what's bothering you about it. Suddenly everything seems to get fuzzy for a second, and when you look again you realize that there must have been some sort of glamor or illusion on the item. There's no black sand at all, you've just got a bland sack.
You got an item: bland sack