noun:  an ornamental stone consisting of a hard variety of chalcedony (quartz), typically banded in appearance.

Symbolism:

Agate is known for it’s power to help in stressful situations, a symbol of courage and strength.

It is said that agate increases stamina and helps awaken talents.

Agate is believed to prevent insomnia and nightmares, a symbol for good health and longevity.

Agate is a symbol for prosperity and wealth.