SLAM! The hammer is not a very good choice for this dissection!

If you don't know what is inside
the mystery "rock", you don't know
how fragile, or breakable, it may be.
As a scientist, you wouldn't want to
use a hammer to open it. You would start
with something a lot less destructive.

We can use a hammer to open something like a coconut, once we have learned what is inside a typical coconut and that its milk is not fragile. And hammers do come in handy in the science of geology, where we are studying the earth and may have to dig or break up layers of rocks. However, the hammer is usually not on the list of a scientist's dissection tools.

Try one of the other tools
you collected instead.

Or, if you are done taking the object apart,
you can continue with your investigation...