Lapidary / Gemstone Community Forum

Stone Talk => Share Our Finished Cabochons and General Cabbing Questions / Tutorials => Topic started by: bobby1 on March 31, 2016, 11:52:50 pm



Title: Newest COPCO Agate Cab
Post by: bobby1 on March 31, 2016, 11:52:50 pm
I just finished this COPCO Agate cab. It is 1-1/4" across. Making this cab will be in my monthly column in Rock and Gem Magazine in a couple months.
Bob
(https://gemstone.smfforfree4.com/proxy.php?request=http%3A%2F%2Fi151.photobucket.com%2Falbums%2Fs160%2FRocksbob%2FRocksbob063%2FCOPCO%252015_zpsgf59rslq.jpg&hash=cd420596505b0465d1495044a15f9bd6) (http://s151.photobucket.com/user/Rocksbob/media/Rocksbob063/COPCO%2015_zpsgf59rslq.jpg.html)


Title: Re: Newest COPCO Agate Cab
Post by: Jhon P on April 01, 2016, 08:52:22 am
love the dendrites. Do you collect that yourself at the Copo reservoir in northern Calif.?  I heard that you couldn't get in there to collect anymore?


Title: Re: Newest COPCO Agate Cab
Post by: bobby1 on April 01, 2016, 10:41:53 am
I haven't collected there and I also heard that collecting is not allowed. Over the years I have picked up the material from shows or collections that I have purchaded.
Bob


Title: Re: Newest COPCO Agate Cab
Post by: hulagrub on April 01, 2016, 11:07:07 am
Bob, I love it!


Title: Re: Newest COPCO Agate Cab
Post by: socalagatehound on April 01, 2016, 03:11:20 pm
Very cool!!! yes16 yes16 yes16

Craig


Title: Re: Newest COPCO Agate Cab
Post by: Talusman on April 02, 2016, 09:22:08 am
That's a beautiful cab.

Do you think this could be a copco? It's been lightly tumbled and pictured wet.

Thanks!

-Jeremy



Title: Re: Newest COPCO Agate Cab
Post by: 55fossil on April 02, 2016, 11:36:55 am
My best guess would be Montana Agate.


Title: Re: Newest COPCO Agate Cab
Post by: Talusman on April 02, 2016, 12:20:42 pm
Suppose that's more likely. Thanks.


Title: Re: Newest COPCO Agate Cab
Post by: bobby1 on April 02, 2016, 06:55:34 pm
That piece to me is certainly COPCO because of the orange skin, milky background and the pattern of the inclusions.
Bob


Title: Re: Newest COPCO Agate Cab
Post by: bobby1 on April 02, 2016, 07:00:27 pm
Here is what the piece looks like that I made the cab from. It looks a bit blurry because the color pattern is about 1/8" below the surface.
Bob
(https://gemstone.smfforfree4.com/proxy.php?request=http%3A%2F%2Fi151.photobucket.com%2Falbums%2Fs160%2FRocksbob%2FRocksbob064%2F2016-03-28%252009.06.08_zpsplhglgut.jpg&hash=db2eea64f49e2d1f15ce0d142e75db48) (http://s151.photobucket.com/user/Rocksbob/media/Rocksbob064/2016-03-28%2009.06.08_zpsplhglgut.jpg.html)


Title: Re: Newest COPCO Agate Cab
Post by: Talusman on April 02, 2016, 07:49:24 pm
Wow, now that you post that piece I'm back to thinking copco. There are two patterns - each is just below the surface on opposite sides - not typical placement and pattern of Montanas I've seen. Maybe I'll tumble or grind down closer to the pattern, which looks pretty cool. Here's some pictures dry of both sides.


Title: Re: Newest COPCO Agate Cab
Post by: bobby1 on April 02, 2016, 09:29:08 pm
It is very common with Copco material to be a flattened shape with a pattern on both sides though the patterns are not identical and they don't go all the way through.
Bob


Title: Re: Newest COPCO Agate Cab
Post by: Talusman on April 02, 2016, 09:37:24 pm
Thanks Bob - Indeed the patterns are restricted to 2 layers each about 1/8"-1/16" below the surface on either side. As far as I can tell the center of the agate is just milky white.

I'll have to look for your article to learn how to turn a piece like this into such a beautiful cab.

Thanks again!

-Jeremy


Title: Re: Newest COPCO Agate Cab
Post by: bgast1 on April 12, 2016, 09:44:27 am
I look at that cab and I see a chicken playing soccer. Cool cab yes16