Black Agate♥ Love ♥ Abundance ♥ Wealth ♥ Good luck ♥ Longevity ♥ Acceptance ♥ Courage and strength ♥ Protection, security and safety ♥ Balance ♥ Harmony ♥ Generosity ♥ Appreciation of nature Black Agate, like all black stones, is a grounding and protective crystal. It gives a calming peace that helps those during a period of bereavement. Black Agate gives innerstrength to move on and is also very helpful in keeping the peace in stressful households.