Nephrite. A hard, compact mineral, of a dark green color, formerly worn as remedy for diseases of the kidneys, whence its name kidneystone. Amphibole.
“Therefore, since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles, and let us run with perseverance the race marked out for us.”
– Hebrews 12:1