Flint. A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge.
“God often bestows temporal prosperities on the wicked, to show how lightly he esteems what the world is so dazzled with; but crosses he reserves for his own, whom he would humble under his Almighty hand, and make them the objects of his delight.”
–Fenelon