RARE Apache Agate from Chihuahua Mexico, old stock, none like these have been found since the 1970s.  The best came out from 1958 to 1979. 
This one is #___ in my collection and nicknamed "_____" (all of my Apache Agates have nicknames, I have only had 40 total pieces in many years of collecting). Measures _______________________ and weighs about ____________.
Attempts to find more at the locality did not produce anything of worth.  All APACHE agates that I sell have been in my personal Apache Agate collection which I am downsizing. 
I am not accepting offers or negotiating on price for any of my Apache Agates, I've spent tens of thousands on them and they were a very special part of my collection.