thanks guys. the knife blade is quartzite.
1 more thing.
The smaller points i am trying to make 6 to hunt with this fall, i am trying to make matched points i am shooting for 160grams and those points are 150grams , 175grams , 180grams, making th points match is a whole new thing to me. Well almost new James tryed to teach me how a few years ago, he told me to bi-face them all than rotate through them tacking 1 or 2 flacks of one than a few flacks off another bi-face and so on, Thats not what i did with these i just had a grams scale in front of me and i layed the point on the scale a bunch of time as i was making it to try and meet my weight. Any other tips on matching points would be cool.