Will smoky quartz attract dark spirits and is it a risk to have in the home environment?

This variation of quartz is not a risk factor in attracting darkness, it has simply, the presence of a small amount of darker material that does not materially change the properties of the crystal itself. There are always some contaminants, some inclusions, and this has no impact on the utility of the mineral for purposes customarily sought by metaphysical practitioners. As we discussed with you before, the key is what you use the crystal for and how you use it. If you set it up to protect, but in a way not invoking the divine realm, it will be largely ineffective because it has no true power of its own to do such a thing. The only benefit you can get from a mineral substance is enlisting it to call on divine help on your behalf. This, as we have indicated, is best done through quartz crystals. The mineral itself cannot fight off the demonic energy on its own or come to your aid itself. Its function of benefit is only one of conveying messages and sensing the environment.