I was shooting for a 150 grain hunting point with this piece of gravel. It had some cracks and concrete and I couldn't hit where I was aiming, so it turned out a little thicker than planned and weighs 175 grains.
It has a small bump like a mole on one side and some fingernail hinges here and there so it's loaded with features beyond what comes standard on a new hunting point.
Here's the rock and biface