A mineral with a hardness of 6 on the Mohs Hardness Scale could be many things, as there are several minerals with that hardness. To narrow it down, I'd need more information.

Can you tell me:

* Where did you find this mineral? (Location can help determine common minerals in the area)

* What color is it?

* What is its luster (how does it reflect light)?

* Does it have any other distinguishing features like cleavage (breaks in a specific way) or crystal shape?

Once you provide more details, I can help you identify the specific mineral.