Not as impressive as Treebreezy but here are a few I've made.
If these upload in the right order the first small black point in a piece of dacite. Formed in the same ways obsidian is, same areas found, it just isn't translucent like obsidian.
The next is my first point ever. It's like trying to do a 45" white oak removal over a power line, for your first climb, with this particular type of rock and tools that were used. This is a rock native to my state (NC) and is one of two rock types here used for points. It's called rhyolite. It's volcanic ash from the ancient archipelago of volcanos in central NC known as the Uhwarrie Mountains. Both types (the other being quartz) of rock suck to knap, and both actually require stone and antler tools, even large dogwood billets as well, as copper won't work on either of the two. Most points found in Southern VA, NC, and upper SC, if they aren't quartz, they're rhyolite probably. A green/slate gray colored material freshly broken, but has a tan patina after weathered over hundreds/thousands of years.
Next is a small Dalton style point out of root beer chert commonly found in TX. Was supposed to be a touch larger but chit happens. You get what the rock gives ya.
Next is a contractors chert point. Commonly known as a broken window. Easy material, free to get. Makes nice points like Breezy has shown.
Last is some sort of point I got out of a nice piece of TX pedernales chert. A dream to work. Not as thin as I'd like it but I was happy with it. Wanted to run those notches a little deeper but quit while I was ahead.
Have broken any rock in years. Kind of miss doing it but it does make a mess lol.