Obsidian is a powerful stone that absorbs negative energy while grounding and protecting against evil. It is called the stone of truth, because it disables people from lying or hiding truths from you and reveals what is hidden. It enhances your intuition /sharpens your gut instinct. Brings good luck and is used to stimulate the gift of prophecy. Everyone* should have an obsidian cube in their purse or pocket!
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*:It is not recommended for children or adults over 70 yrs of age to carry obsidian as it is very powerful. A gentler alternative would be hematite.