Nephrite. A hard, compact mineral, of a dark green color, formerly worn as remedy for diseases of the kidneys, whence its name kidneystone. Amphibole.
“What a blessed condition is a true believer in! When he dies, he goes to God; and while he lives, everything shall do him good. Affliction is for his good. What hurt does the fire to the gold? It only purifies it.”
–Thomas Watson, A Divine Cordial