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Post by fernwood on Oct 25, 2017 19:42:42 GMT -5
A little clueless on this one. Found in a landscaping mix. Other rocks in the mix are fossil corals, Cherts, Jaspers, Quartzes. Also some rather blah rocks. Looks like the mix from a local Central WI landscape place. Glacial deposit area. Color is a little off for the green portions. Sorry, low light outside after work. Here is what I was able to ID: It contains white/crystal Quartz and Black Chert. Some of the Quartz has distinct points. Some is more like milky quartz. The green is more intense than pictured. Reminds me of Peridot. Any thoughts? Might be able to get some better photos this weekend. thanks.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Oct 25, 2017 19:48:45 GMT -5
Granite
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Post by fernwood on Oct 25, 2017 20:02:10 GMT -5
Not granite. At least nothing like the usual granite around here. The surface is mostly smooth. Reminds me of the black cherts, as it is somewhat translucent.
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Post by toiv0 on Oct 26, 2017 3:34:07 GMT -5
I say granite also
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Post by fernwood on Oct 26, 2017 5:30:59 GMT -5
OK, then it is, what it is. Just unusual. Thanks.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Oct 26, 2017 9:36:19 GMT -5
Define "usual".
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lookatthat
Cave Dweller
Whatever there is to be found.
Member since May 2017
Posts: 1,360
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Post by lookatthat on Oct 26, 2017 11:01:33 GMT -5
I think lots of different things have happened to this rock and thus it defies a neat description.
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ryan
starting to spend too much on rocks
Member since October 2016
Posts: 185
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Post by ryan on Oct 26, 2017 11:42:39 GMT -5
I think this stone is cool, most granites consists of feldspar, quartz, hornfels/magnetite/hematite and or mica. A granite with chert and I'm thinking the green is epidote, which is a metasomatic process, is really cool! Ryan
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Post by fernwood on Oct 26, 2017 19:51:59 GMT -5
The usual granites around here look nothing like this. Sorry, no photos or photography ability this time of night. They have a very rough surface with mostly mottled colors in a somewhat random pattern. Lots of fractures. Rare to find any green. Mostly reds, whites and grays. Any black is usually somewhat magnetic. They are mostly opaque, where this is somewhat translucent. No defined lines or solid color portions of this size. So, that is the usual granite characteristics.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Oct 26, 2017 21:08:31 GMT -5
The usual granites around here look nothing like this. Sorry, no photos or photography ability this time of night. They have a very rough surface with mostly mottled colors in a somewhat random pattern. Lots of fractures. Rare to find any green. Mostly reds, whites and grays. Any black is usually somewhat magnetic. They are mostly opaque, where this is somewhat translucent. No defined lines or solid color portions of this size. So, that is the usual granite characteristics. You report many many "unusual" finds in your pastures. That is why I asked. This one no different really. Unusual it its own way.
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Post by fernwood on Oct 27, 2017 5:28:33 GMT -5
It just stood out amongst the other landscape rocks that were there. Not at my place, about 15 miles away.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,687
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Post by Fossilman on Oct 27, 2017 9:42:17 GMT -5
Some granite's tumble great too....
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Post by fernwood on Oct 27, 2017 20:33:57 GMT -5
This would be a great tumble. Saw 5 more of the same today, while at work. Know I cannot "Steal" rocks from the landlord of the person I am caring for, so, just looked at them. All are beautiful. About 3" or less in length. All have the same characteristics of translucence in the black, combo of milky and clear quartz, some green quartz type veining. Very smooth overall surfaces with no fracturing. person I care for is a guide at the local museum and appreciate rocks. Non verbal, total care. But he loves anything related to what he sees there. I showed him some of the coral fossils I found by his patio and he loved them. Took a photo, so I could add them to his communication computer. They are temporarily in his living room so he can tell others about them. Sorry. Maybe I am regressing like coloradocliff now in his absence, lol.
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