It's been said, but never buy grounded up weed, for a few reasons. For one, the seller or producer could have shook all the kif from the busted up greens, not to mention the kif loss when he grinds it all up.

Second, because they can add other green elements, like spices or tobacco, and mix it in.

Trying to compare if your shit is weighed up by picture is impossible, so just buy a cheap scale to know for sure.