yup it can be fixed! add a few drops of rubbing alocohol to make it into a paste, smooth it out with a knife or the back of a spoon and let it dry before using. Voila your broken powder is fixed.
Or you can just blend it really fine & use it as a loose powder.
This works great on any broken powder such as blushes or eyeshadow and even though rubbing alcohol smells as it evaporates it doesn't leave that odour.
Good luck!