Quartz Crystal 1 3/4” pendant with Black Opal set in .925 Sterling Silver on 22” Silver chain. Quartz has been used in almost every society and is highly regarded as a super-frequency stone, commonly adorning the tops of pyramids. Quartz is the strongest enhancing stone in the mineral kingdom and helps reignite our true identity while showing us the path towards enlightenment. It's clear energy acts as an amplifier of the vibrations that are put into it, making it an excellent manifestation tool.