RARE Apache Agate from Chihuahua Mexico, old stock, none like these have been found since the 1970s. 
This one is #12 in my collection and nicknamed "Sharky" (all of my Apache Agates have nicknames, I have only had 40 total pieces in many years of collection).  Measures _______________________ and weighs about ____________.  It is a large half nodule which is rare, as most of these were cut up for slices.  
The best came out from 1958 to 1979.  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.  
To see all of my other Apache Agates and Apache Flame Agates for sale, CLICK HERE, or go to: https://www.dominiongems.com/apache-agates-for-sale