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Post by Son Of Beach on Nov 10, 2021 19:05:11 GMT -5
 Haha no, talking Donkey from shrek |
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Post by mohs on Nov 15, 2021 15:09:28 GMT -5
Did some more grinding on my everyday average crow cracked olivine find  At least I think it mostly olivine w/ lots of horneblende silica ect,,, Whatever it is -came form deep in the earth as I crow bar cracked it from seam in the granite piedmont Best so far all i can get is countertop finish That radius slope is about 3” x 2" Hard & slick |
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Post by RickB on Nov 15, 2021 17:30:06 GMT -5
That's a pretty rock, good color and will make some nice hearts. Looks a lot like epidote that we find in the NC mountains that's associated with granite.
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Post by Son Of Beach on Nov 15, 2021 18:09:02 GMT -5
Did some more grinding on my everyday average crow cracked olivine find At least I think it mostly olivine w/ lots of horneblende silica ect,,, Whatever it is -came form deep in the earth as I crow bar cracked it from seam in the granite piedmont Best so far all i can get is countertop finish That radius slope is about 3” x 2" Hard & slick Is the Olivine normal in gneiss? Does it form near the same or a much later time? It's a really neat piece.
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blueyblue
starting to shine!
Member since November 2021
Posts: 47
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Post by blueyblue on Nov 15, 2021 18:32:34 GMT -5
That's a pretty rock, good color and will make some nice hearts. Looks a lot like epidote that we find in the NC mountains that's associated with granite. Have you ever seen epidote agate before? This probably came out of a rock quarry. I found it in some riprap in the mountains of NC. I have the only one that I know of. As an agate hunter in KY I knew what to look for. This "pot belly" looking rock had the void it needed to fill. The void came from gasses when the original matrix was cooling down, leaving a place to "chill-out" for the hot-pressurized-epidote-solution. |
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blueyblue
starting to shine!
Member since November 2021
Posts: 47
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Post by blueyblue on Nov 15, 2021 18:40:31 GMT -5
Did some more grinding on my everyday average crow cracked olivine find At least I think it mostly olivine w/ lots of horneblende silica ect,,, Whatever it is -came form deep in the earth as I crow bar cracked it from seam in the granite piedmont Best so far all i can get is countertop finish That radius slope is about 3” x 2" Hard & slick Is the Olivine normal in gneiss? Does it form near the same or a much later time? It's a really neat piece.
It's a hydrothermal metamorphic process where hot water is boiling up like Yellowstone Park geysers. A calcium solution shellacs the crevices that the water and steam pass through. The hot liquid cools off as it crystallizes -- leaving a pea-soup colored residue. We call it epidote. It's a pistachio earthy kind of color. |
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Post by mohs on Nov 16, 2021 11:49:12 GMT -5
Right on  thanks all for the interesting info the green may very well not be olivine could very well be an epidote vine  interesting blurb I saw online olivine doesn't associate well with quartz and the seam was quartzy |
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Post by mohs on Nov 17, 2021 10:50:00 GMT -5
This as turned out be quite the study and I can't pretend to explain it even tho after all these posts my moniker is can identify rocks- even green ones ha Butte I always naively assumed most Green rocks were olivine based Wrong Actually a very few percentage are -if any I guess These clasts in the Papago Buttes Must be some combination of epidot, chlorites ectal  What is commonly referred to as greenstone Because there so convoluted meta morphed Please keep adding your geologically informed insights... |
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Post by mohs on Nov 24, 2021 13:11:38 GMT -5
I finally spotted something unique to the Papago area area on a hike this morn A little Quartz seam nugget in epidite I suppose  Tomorrow I’ll try polish a side... till then or before mohs |
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Post by mohs on Nov 25, 2021 12:19:01 GMT -5
my morning project was to polish my unique Quartz seam find on my Papago climb This is quick shot of it halfway done  Earlier I had all finished Butte got the stone to hot in on serioumz buff & the quartz flaked So it was back to the grind
Happy Thanksgiving m  hs |
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Post by hummingbirdstones on Nov 25, 2021 12:21:14 GMT -5
my morning project was to polish my unique Quartz seam find on my Papago climb This is quick shot of it halfway done Earlier I had all finished Butte got the stone to hot in on serioumz buff & the quartz flaked So it was back to the grind
Happy Thanksgiving m hs Happy Thanksgiving, Ed!
That's a really nice rock you found!
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Post by rockjunquie on Nov 25, 2021 12:23:51 GMT -5
my morning project was to polish my unique Quartz seam find on my Papago climb This is quick shot of it halfway done Earlier I had all finished Butte got the stone to hot in on serioumz buff & the quartz flaked So it was back to the grind
Happy Thanksgiving m hs
Bummer. But, at least you still have it and it didn't go flying. 
Happy Thanksgiving to you, Ed. |
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Post by mohs on Nov 25, 2021 12:34:23 GMT -5
Thanks Rock'n Gals! I really appreciate the likes and sediments yeah how that rock ended up in Papago is real a mystery I've looked & looked never see any thing butte clasticz really fine clastics buute clasticz nonetheless just goes to prove the ol'mohmotto a little rock rolls a long ways...
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Post by mohs on Nov 29, 2021 13:51:21 GMT -5
Admittedly this is not a very good picture of another unique find in Papago Its shaded Get a better shot, when the sun is setting Should light up better  Its large chuck of black lava scoria Those vesicles are glassy melt & obsidian sharp Apparently someone defaced it what I think is paint Although I’m not sure Plan on bringing over some acetone & brush and see if I can’t clean some of it If it is latex paint Any have suggestion of best cleaning method? Thanks ED |
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Post by rockjunquie on Nov 29, 2021 14:13:43 GMT -5
Admittedly this is not a very good picture of another unique find in Papago Its shaded Get a better shot, when the sun is setting Should light up better Its large chuck of black lava scoria Those vesicles are glassy melt & obsidian sharp Apparently someone defaced it what I think is paint Although I’m not sure Plan on bringing over some acetone & brush and see if I can’t clean some of it If it is latex paint Any have suggestion of best cleaning method? Thanks ED
Acetone will do it. But, it would take a lot. Maybe turpentine or mineral spirits?
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Post by mohs on Nov 30, 2021 12:47:23 GMT -5
Acetone will do it. But, it would take a lot. Maybe turpentine or mineral spirits?
on small area just tried some acetone & gunk wire brush nogo the vesicles are so rough, sharp, and deep tough to clean |
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Post by mohs on Nov 30, 2021 13:09:20 GMT -5
pretty sure this rock was hauled in perhaps from Sunset Crater ?  try to track down a park ranger and get some info on source ... |
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Post by mohs on Nov 30, 2021 15:23:19 GMT -5
thank miket ! you find any lava type rocks in your travels? |
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Post by miket on Nov 30, 2021 15:37:47 GMT -5
thank miket ! you find any lava type rocks in your travels? Not really around here, my friend... |
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Post by mohs on Nov 30, 2021 16:12:18 GMT -5
thank miket ! you find any lava type rocks in your travels? Not really around here, my friend... Right on Mike How about seashells? Over in Papago I’ve found many tiny white bi-valves shells Sea-shells in the desert. Seem strange. Today I was doing some digging in soft soil spot in that park. That hard to find in that area. Its acres & acres of granitic rocky clastic piedmont. Drive a couple miles away & all you’ll find --for miles & miles & miles & miles ect.... -I’m talking whole humongous valley basin- is nothing butte deep soil/dirt filled land Hardly a rock to be found All that said: in my dig I found a different type of shell. besides just the tiny white bivalves Little white nautilus type shells like ammonite shape- but modern- I suppose have to get a picture Anyway just wondering if you find sea shells in your area? My idea looking your basin pictures is that land raised from some ancient sea. |
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hs 
Nov 14, 2024 18:17:57 GMT -5
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Nov 14, 2024 18:17:57 GMT -5
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
