hi, just stumbled on this site not too long ago...been detecting for a few years...been collecting rocks and gem cuttin as a profession(faceting and cab cuttingand gold/silversmithing) for about 16 yrs.1st pic looks to be leopardskin agate,2nd looks like agate as well,3rd is tourmaline in qtz. no doubt about that one. since i work with materials like these daily i thought i would chime in. i am in western n.c. and in 3 counties around me there are over said to be over 1500 of the known 5200 or so varities ....great area for that...also great for md'ing...not too many around here do it...gonna try and find some becthler coins one day...met a couple of guys who had found a few over thr years a while back. anyway,great to be here,mike