Here we have a large Smoky Quartz crystal point with black to grayish colors. Translucent and very grounding crystal tower that would make a beautiful addition to your home. 
 
Smoky Quartz meaning and properties – A grounding crystal that neutralizes negative energy. Transmutes depression, fears, nightmares, & stress. Promotes dreams, inspirations, meditation, detoxification, grounding, centering, practicality, & organization.

Zodiac Signs - Smoky Quartz assist Sagittarius & Capricorn

Chakras - Smoky Quartz heals the Sacral & Root Chakras