Black crystals can help remove negative energies and promote protection, stability and grounding. Keeping a black crystal near your front door can help with turning away negative energies from entering your home, as many black crystals have extremely powerful protective properties.
A black crystal can provide a sense of well-being, and can be the grounding force you need. They provide a strong connection to the physical and natural world that we live in, and help to relieve fears. They can also provide a sense of power and security.