I love the stories about what was left behind on the old saw.  It always amounts to a pleasant surprise.  Beautiful pics of that material!

That is beautiful material and expertly crafted.  Well done!!

Not so old, but lying in the bottom of Cienega Creek....

Whoops, I guessed wrong, Buick was sporting a 6 cylinder in that time period. Live and learn. 

I'm taking a risk, but I'd place my guess for the coupe to be a 37' Chevrolet, based on the overall configuration of the body.  Alas the missing grill and hood would confirm or eliminate this supposition.  I courted my wife in a 37 Chevy.
The touring car would appear to have a short block for a buick, which I would guess would have been an 8 cylinder.  I can't see the entire exhaust manifold but it looks to be a 6. Now I'll have to go look it up. 

Nice one!

We think this one was a 1924 Buick, http://www.collectorcarads.com/Buick-Touring/33471?fbclid=IwAR1JvV1c5uYoqjOWDoiRY3jSI41eMdHtjZaZ7RIGuv4v4Vq4Dl6ZaKSsAhM based on the dashboard configuration and remaining body.

      I would think you could rock hound safely in many areas. Pack your own food and water. Only stop to get gas and pump it yourself while you pay at the pump. Should be able to stay a safe distance and wear gloves and or use sanitizer. Once you are in the hills it is freedom and clean air. I rarely see a soul at my mining areas in the Owyhee's.

Great photos and, once again, invaluable info.

It's so good of you to post photos of the "real" thing. So many things in the lapidary world get mis-identified, and over time people become convinced that what they've always heard or read just has to be correct.

We appreciate the education.

I was watching a video from black opal direct, like his videos, and he was "putting some myths to bed about opal".  One of the things he said was cleaning in Ultrasonic cleaners was just fine and put a black Opal in a cleaner.  I don't know if he addressed Doublets and triplets vs a solid nobby opal and whether the bonding agents could be affected by the ultra sonic.  In the Vid he also put the opal in various cleaning chemicals to show they wouldn't harm the opal.

Maybe it depends on the opal and the aluminum oxide content.  There area about 300 types of opal and they can vary in aluminum oxide content. The higher the content the more stable the stone becomes.

I have been going to the desert and mines to dig. Just went again yesterday and had a great day.