I am not sure what this is. a scraper or some kind of small knife form,but there is a vein in the quartz that runs up to a sharp tooth.Is this what they refer to as a tang?
Sometimes hard to tell from a picture with quartz. Might be a scraper or a broken point. Some of the base broke and the point broke off . The sharp tooth you refer to I believe is just a break at the vein that runs through.