Quartz is THE Master crystal. It amplifies and focuses energy, and is a great cleanser too. It is perfect for re-aligning chakras and energy bodies and can also be programmed.
Essentially it brings in and then directs Light into the physical plane, providing a clear channel for higher vibrational frequencies to be grounded onto the Earth plane. So it can be used for any energetic/metaphysical purpose and can be considered an essential tool for any healer. It works well with almost any crystal.
This particular wand is 30 cm long, and has a bunch of rainbows halfway down
It is about 4cm wide x 3 cm deep and weighs approx 485 g