The honey locust and the black locust are two distinctly different trees. The black locust is known for its light yellow wood and rot resistance. It's commonly used for fence posts. The wood is heavy and dense; hard on chainsaws, but has a lot of btu in the woodstove. Black locust also makes decent selfbow wood, but more prone to string-follow in time.
Honey locust (by appearance) is known for its nasty thorns which can be 4" long and needle pointed. The bark is light gray and usually scaley. The wood is typically light tan to almost blonde in color, and it makes pretty good lumber. It is usually lighter in weight than black locust, and somewhat softer when fully dried.
Where I live in Ohio, black locust trees far outnumber the native honey locust...maybe 100:1.