Moon rocks are nugs of cannabis flower dipped in extracts and rolled in kief. Moon rocks are typically high in THC, averaging more than 50%, and valued foremost for their potency. Moon rocks are also frequently referred to as “cannabis caviar,” although this title is technically reserved for buds dipped in extracts but without the added layer of kief.

Not only do moon rocks look like something from the lunar landscape, they are also named for the out-of-this-world high you’re likely to get from smoking the concoction of weed dipped in concentrated weed and rolled in even more concentrated weed.

Some cannabis consumers use the terms moon rocks and cannabis caviar interchangeably but the descriptors did originally designate two distinct products. Cannabis caviar may refer to moon rocks, or it may just refer to nugs dipped in cannabis oil. So if you’re shopping for moon rocks at a dispensary and you hear your budtender talking about caviar, double-check and make sure you’re getting kief-covered moon rocks.

Though moon rocks are a relatively new cannabis product, a wealth of variations are already out in the market, including THC-free hemp varieties high in CBD. Cannabis brands continue to engineer their own variations of moon rock products with various cultivars and concentrates. Some pre-rolls on the market mimic the moon rock experience by drizzling concentrate over the finished pre-roll and rolling it in kief. These products essentially allow you to smoke moon rocks without dealing with a sticky mess.