Your search for "rainbow" revealed the following:
Rainbow Obsidian Meaning, Benefits, Healing Properties & Uses
  Crystal Guide Metaphysical Properties and Purposes, Spiritual, Mental, Emotional and Physical Healing Energies, Uses, Chakra Energy, Meditation, Color Energy, Care, Cleansing, Charging, Programming, Legends, Fun Facts, History, Feng Shui and More... Keywords: powerful shield, blocks negative energies, protection, grounding, cut ties, self reflection, hope, illumination insight, unresolved issues,  personal/spiritual growth,...
Fluorite (Rainbow) Meaning, Benefits, Healing Properties & Uses
 Crystal Guide Metaphysical Properties and Purposes, Spiritual,Mental, Emotional and Physical Healing Energies, Uses,Chakra Energy, Meditation, Color Energy, Care,Cleansing, Charging, Programming, Legends, Fun Facts, History, Feng Shui and More...  Keywords focus, mental clarity, clear decision-making, concentration, energetic "vacuum cleaner," removes negativity in aura, calms a chaotic mind, promotes freethinking, flexibility  organization, spiritual enlightenment,...