I took some time off of work to spend with my son before he goes to Ohio for the summer.  We went out the last two days and did pretty well and my son found his first point.  Tyler's (my Son) point is really pretty and made of sugar quartz, I haven't been able to find the type yet, but I am working on it.  I will send you the pics, also I am going to enclose one of a grinding stone my step mother gave me last weekend, she found it in Arkansas about 30yrs ago.