My friend Dave's awesome quartz triangle find last month had me wanting to find one in this shape and material, too. I have many of this but have gone some time without finding a decent one. On July 28 I headed to a spot where I have found a few really nice examples. I didn't find anything great but I did find a couple of quartz triangles, so certainly nothing to complain about. This one is rather crude but it is more or less all there, and was easy to spot:
Anyway, it was a fun BBQ and it was winding down and I had to move my car so some relatives could leave. I parked the car in the front yard near a little hill where there is a septic tank. Here is a picture of where I parked, you can see the front of my little Toyota.
here. Broken quartz is a signal to look closer. So I did, and I saw something that looked like argillite, another favored local material. I picked it up.