Key Quartz crystal formation has an indentation in one of its sides, which narrows as it penetrates the crystal. This “key hole” indentation in the crystal’s surface is usually, but not necessarily, three- or six-sided. Key Quartz crystals provide a type of doorway unlocking parts of the self that are kept hidden, or to access hidden information of any kind. Meditating a Key Quartz Crystal may reveal what is or has been hidden from you. Key Quartz crystal are excellent tools for letting go of anything that holds the soul back and for tie-cutting. Key Quartz Crystals offer clarity and answers to questions while it sweeps away illusion created by your subconscious mind. Key Quartz Crystals resonate with the astrological sign of Virgo. Key Quartz Crystals vibrate with the number 8.