offleash
off to a rocking start
Member since March 2018
Posts: 2
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Post by offleash on Mar 7, 2018 15:57:03 GMT -5
Hi everyone, my kids got their very first tumbler and so have been a little rock crazy while we're out and about. We picked up some cool rocks while in Mendocino a few weeks ago and I thought I'd try to figure out what they are before the kids drop them into the tumbler. I'm pretty new to this so bear with me...photos attached. I'm guessing most of them are some kind of jasper, but the one on the top left (#1) is a really interesting shade of aqua, and the one on the middle right (#7) has some translucence when held to the light. The one with the perfect polka dots I was thinking was some sort of obsidian, but doesn't look like anything I have seen in other images... HELP!
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Post by Jugglerguy on Mar 7, 2018 16:21:18 GMT -5
Hi offleash, I have no idea where Mendocino is, so I’m guessing its not in Michigan. Since I’m most familiar with Michigan rocks, I’m not going to be much help identifying yours. I thought I’d say, “Welcome to RTH!” though. I find lots of rocks on the beaches of the Great Lakes here and I don’t know what half of them are. Is still throw them in the tumbler and I’m usually happy with the results.
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Post by fernwood on Mar 7, 2018 16:48:52 GMT -5
Welcome. The only Mendocino I know is in CA. If so there are members here from there that might be able to help.
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Post by MsAli on Mar 7, 2018 16:50:44 GMT -5
Hi and welcome from Fresno ca Cannot help you with identification but I love the face of # 4-looks like the man in the moon
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Post by mohs on Mar 7, 2018 16:55:34 GMT -5
Yes Welcome To RTH ! that black stone rocks! basalt with quartz inclusions? maybe something more exotic check thomsanite...
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offleash
off to a rocking start
Member since March 2018
Posts: 2
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Post by offleash on Mar 7, 2018 17:41:31 GMT -5
Mendocino, CA. I should have specified... sorry! Rocks were found on the beach after a big, very windy storm.
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Post by adam on Mar 7, 2018 19:38:40 GMT -5
Hi everyone, my kids got their very first tumbler and so have been a little rock crazy while we're out and about. We picked up some cool rocks while in Mendocino a few weeks ago and I thought I'd try to figure out what they are before the kids drop them into the tumbler. I'm pretty new to this so bear with me...photos attached. I'm guessing most of them are some kind of jasper, but the one on the top left (#1) is a really interesting shade of aqua, and the one on the middle right (#7) has some translucence when held to the light. The one with the perfect polka dots I was thinking was some sort of obsidian, but doesn't look like anything I have seen in other images... HELP! Hey mate, #6 looks to me like rounded quartz, more like blue quartz. Tumble that sh*t up. I promise it would look good. Maybe you got some rhyolite and jasper in the mix. Who knows what else.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Mar 8, 2018 11:00:46 GMT -5
Looks like, jaspers, rhyolite, agates/jsper and basalt with quartz... Sorry no Obsidian in the bunch... Should all roll nice in the tumbler...
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Post by vegasjames on Mar 8, 2018 20:44:06 GMT -5
Welcome to the forum.
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NRG
fully equipped rock polisher
Member since February 2018
Posts: 1,630
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Post by NRG on Mar 10, 2018 13:28:27 GMT -5
The green ones are likely Chert from the Franciscan formation.
Thanks for joining us. Hello from sunny SoCal (raining today!)
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