Potential Meteorite? Please help me identify with certainty?

Found south shore Lake Ontario. Approximately 18 mile south of Rochester Basin Meteorite crater sight. Randle Carlson postulates a meteorite struck through a mile of glacier. Changing hypothesis how the Drumline Field and the Fingerlakes were created. So it makes sense to find this in the location I did in the town of Williamson New York. On my property. Flow lines are visible. Weights 15.2lbs. Magnetic I'm looking for more help authenticating.