Mercury Retrograde is a period of time in which the planet Mercury appears to — but doesn't actually — move backward. It is an optical illusion astronomers named “retrograde”. 
Mercury is the planet that rules communication and technology, so you can expect Mercury Retrograde to impact all forms of communication and the way we think about things. During these periods, we often experience delays, mix-ups, and accidents when it comes to communication, transportation, and technology.
Keeping these crystals on hand can help balance out these feelings of chaos during Mercury Retrograde! Here is how…
Clear Quartz - Brings clarity and focus, vibrates pure white light, removing any blockages or obstacles that lie in your path
Amazonite - Encourages speaking clearly and with sincerity straight from the heart, helps to get point across with minimal miscommunication
Amethyst - Purifies negative thoughts and helps release stress, anxiety, and fear