Quartz from Black Mesa, Kenton, Cimarron County, Oklahoma, USA
USA | |
| [var. Chalcedony] snr.unl.edu (n.d.) http://snr.unl.edu/data/geologysoils/agates/AgateLexicon.asp?Name=B |
USA | |
| [var. Chalcedony] snr.unl.edu (n.d.) http://snr.unl.edu/data/geologysoils/agates/AgateLexicon.asp?Name=B |