Nephrite. A hard, compact mineral, of a dark green color, formerly worn as remedy for diseases of the kidneys, whence its name kidneystone. Amphibole.
“Every comfort that the saints have in this world is a promise to them of those eternal mercies which the Lord hath provided for them: as every affliction that the wicked have here, is but the beginning of sorrows.”
–Jeremiah Burroughs, The Rare Jewel of Christian Contentment