Claustrophobia, mental clarity, mutual understanding, group cooperation, memory, discernment, eloquent expression, patience, osteoporosis, recovery after infectious illness, detoxification, sinuses, lungs, heart, spine, muscles, eyes, vision, rheumatism, diabetes, antidote to poisons, epilepsy, malignant conditions.

In old cultures of Europe and India emerald was considered to be the stone of divine inspiration.

Be3Al2(Si6O18)+K,Li,Na+(Cr)