Looks like an arrowhead with the point broken off. The dark one is tough to see ,but it looks like a whole point. Since your new to T-Net, Welcome. When posting questions, please keep this in mind. Try to show reference objects in your pictures.... Like a modern coin, a dollar bill or even a ruler. This helps all of us to be able to give you our best guess. The dark point should be on a white or lighter background to give more detail. My Uncle who collected more than 8,000 points, spear points, scrapers, grinders..., told me the best time to look for points, is a freshly plowed field after a rain. The points sparkle like diamonds on the ground,when you catch them in the sunlight The broken one has no value, other than you found an actual piece of history in your area. Since we don't have any reference for size, we really can't give you an idea for price without identifying it......Good luck.