In Ancient Egypt, the Mer-Ka-Ba was three words. Mer meant a kind of light that rotated within itself, Ka meant the human spirit, and Ba, the human body. So Merkaba means a rotating light that would take the spirit and the body from one world or form into another. It can be activated by meditation, with the breathe, and by changes in perception.
Rose quartz is a member of the largest family of stones, the silica group, and is composed of silicon dioxide with traces of titanium. It emits a calming, cooling energy which can work on all of the chakras to gently remove negativity and to reinstate the loving, gentle forces of self-love. The pink colour of rose quartz has been symbolic of love throughout the ages.