Smoky quartz is grounding, it stimulates stability and responsibility, and increases endurance. It releases and dispels negative energy. This is an excellent stone for clearing energy in your personal environment.
In healing, smoky quartz works well with ADHD and depression. It improves focus and lifts moods.
Rutilated quartz provides energy and focus to clear quartz. It speeds up whatever process you are working with as you use it.
Rutilated quartz is also a good stone to use when you need to focus on a project or task. It helps to maintain concentration and motivation.
Physically, it can be used to regenerate tissue and speed healing.