Injured knuckle at calcium deposit : i have a calcium deposit on my right ring finger middle knuckle. today i smashed it. did i bust the deposit?

Possibly: Smashing a joint with spurs and other calcium deposits can break those hardened structures because they are brittle, hard and unbending. If marked swelling, discoloration, & increasing pain and unable to use, one should splint and rest for several days and gradually begin movement as tolerated. If really concerned about a fracture(broken bone), get it examined by a doctor asap.

It doesn't matter: They are deposits, not bones.