I got this stone last winter in NM. I chose it for it's deep dark turquoise color as well as its kind of organic bumpy face. The stone is polished nicely but it's natural texture was left intact.
I laid it in a traditional bezel setting but did a kind of snazzy trim. I made the trim using a couple layers of twisted sterling and braided it, flattened it a little, and soldered it down. The whole pendant is oxidized and then thoroughly polished.
I chose a very very gorgeous sterling chain to display it on. The pendant is 1 1/2" and the chain is 18".