It's an asian recipe that makes a very hard blocks of cheese that are then cut in small pieces for dogs, and humans, too. (breedingbusiness.com)
Small molecules of methane are produced during the same millions - of - years - long process that converts organic material to hard blocks of opaque coal. (scientificamerican.com)
You don't often see an offensive lineman who run blocks as well as Nelson does, who is also athletic enough to make those kinda hard blocks in space. (sbnation.com)