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Rock Identification https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=37&t=16875 |
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Author: | RosemarieJames [ Tue Oct 09, 2012 6:10 pm ] |
Post subject: | Rock Identification |
I bought this rock at a Rock Show a while back. The seller told me that he got this agate in the Cadiz Mountains located in the Mojave Desert, CA. I just broke apart some of this agate to get ready to tumble it. In the center, there are cyrstals, kind of like a geode. Can anyone identify this rock for me and I'm assuming I shouldn't tumble it now? Your answers are appreciated. Thanks. |
Author: | Barbra Voltaire, FGG [ Tue Oct 09, 2012 7:24 pm ] |
Post subject: | Re: Rock Identification |
Looks like a geode which is a crystal filled vug, surrounded with agate as they usually are, purported to be from the Cadiz Mountains located in the Mojave Desert, CA. I know this sounds like I'm being a smart ass, but that's exactly what I think it is. |
Author: | Stephen Challener [ Tue Oct 09, 2012 7:28 pm ] |
Post subject: | Re: Rock Identification |
Barbara beat me to it on the identification. But anyway, I think tumbling it would decrease the value, since you'd lose the nice crystal faces, but it's not a terribly valuable piece to start with (though it does look nice). I would keep it as-is. |
Author: | RosemarieJames [ Tue Oct 09, 2012 7:32 pm ] |
Post subject: | Re: Rock Identification |
Thanks so much. After I looked up Geode, I felt stupid for even asking the question. I figured it out after I posted. Thanks for the advice. I won't tumble it. It is very pretty in person. Don't you just love us newbies? |
Author: | Barbra Voltaire, FGG [ Tue Oct 09, 2012 7:35 pm ] |
Post subject: | Re: Rock Identification |
We actually do love the new members who are honestly looking for information and appreciate when they get it. Welcome, and keep us abreast of your tumbling successes. |
Author: | Icehut [ Fri Oct 12, 2012 10:43 am ] |
Post subject: | Re: Rock Identification |
An agate with a cavity lined with quartz crystals. Very common, yet pretty, and educational as well, displaying both crystalline and cryptocrystalline forms of quartz, SiO2. |
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