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Post by Barrett on Oct 21, 2010 16:04:02 GMT -5
Sorry Tom, regardless of what you think you may have you don't have a half emerald half heliodore or a half emerald half aquamarine. Aquamarines and heliodores form in a totally different environment than emeralds do. Here is a link to a thread on another site I found. Yellow to green is caused by iron or yellowish-green to green can be an emerald as chromium oxide can cause a yellowish tint but it won't be half emerald half heliodore/aquamarine(please don't equate an emerald green color to an emerald). www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=6&t=8743&start=0It's the same thing as tourmalines..you find tons of bi-color tourmalines..tons of them but those are bi-color assiciated with iron or lithium, etc. You won't find a bi-color chrome tourmaline that is half pink(lithium) and half green(chromium). Same thing applies to beryl's. Here is a link to a tourmaline page showing that green color can be caused by "Green color comes from Fe2+-Ti4+ IVCT together with Fe2+, or from Cr3+ or V3+ alone." If you notice it says "or from Cr+3 or V3+ ALONE" Same thing applies with beryl minerals.caltech.edu/files/Visible/tourmaline/index.htmHere is another quote taken from the "Beryl Page". "Green color in iron-containg beryls commonly results from a mixture of blue and yellow" Which is what you are seeing. Here is some pics mined in Maine by coromoto minerals with beryl going from "emerald green" to blue but alas they are not emerald but common beryl. coromotominerals.com/CaseTour.htmlIt's also similar to tsavorite: "Tsavorite (or tsavolite) is a grossular that, like the Meralani mint, is green in colour. It is coloured by chromium and/or vanadium. The distinction between a 'regular' green grossular and tsavorite is commonly thought to be a function of saturation and tone. However, according to the Bridges' family (tsavorite was discovered by the late Campbell Bridges), the distinction is chemical. The chromophore for green grossular is iron, as opposed to chromium and/or vanadium."
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Post by writerman2255 on Oct 21, 2010 16:50:02 GMT -5
If it's six sided, clear golden yellow, and it has emeralds within it, what is it then?
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Post by Barrett on Oct 21, 2010 18:09:33 GMT -5
Now that may be possible, Tom. Seperate emerald crystals encased in a common beryl. Thats seen in many minerals and gemstones with seperate of the same mineral encased or a totally different mineral unto itself. Emerald is almost a totally different mineral compared to other beryls, all due to chromium. They form in totally different environments. If you have ever wondered why emeralds are always included or have flaws(jardin) it's because the chromium atom is so big it doesn't want to fit itself nicely into the crystal lattice. What would be happening is due to the chromium atoms the nucleation rate for emeralds would be first and once the chromium was all used up(exsolves) it would cease growing the crystal and quit acting as a flux. Since that emerald crystal used up all the chromium all thats left over would be Be, Al, Si, and Oa and with iron being present at 1-2% just about all the time thats what imparts itself as a coloring chromophore
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Post by carnelianpete on Oct 24, 2010 9:29:32 GMT -5
Love all the info that I am getting on beryl, emeralds and the Crabtree. Thanx Williamb. I leanrned a lot. Great info and keep it coming. The more you know about what you are loking for the better your chances of finding it and correctly identifying it. Thanx again to you all about the Crabtree. I'll get there someday.
Pete
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Post by writerman2255 on Oct 25, 2010 20:21:00 GMT -5
I once asked on this thread, if anyone knew how old emeralds were, or when they crystallized. New techniques for dating crystallization have revealed this: Potassium/Argon dating of the muscovite associated with emerald (beryl) crystal growth in the Kafubu reaction zones suggest an age of crystallization of approximately 450 million years ago. Now that's cool! I wonder how old Crabtree Emeralds are! Love and Light, Tom.
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Post by writerman2255 on Nov 20, 2010 23:09:58 GMT -5
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Post by writerman2255 on Nov 20, 2010 23:12:30 GMT -5
Missed this one! In this you can see how defined some of the emerald shapes are.
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Post by mitch on Nov 20, 2010 23:36:14 GMT -5
Tom,
You have got to show me the ropes at the crabtree s ome time soon. Keep at it!
Mitch
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Post by writerman2255 on Nov 21, 2010 10:16:19 GMT -5
No problem. They're there. As I've said before, I know where there are several refrigerator sized boulders covered in emeralds, buried there, but I can't get to them myself in one day, and when I did get to them one time, they were so round I could not whack them into pieces small enough to get into even my truck. The sledge just laughed at me as it bounced off of them. And too, I know for a fact, that there are still hundreds of unexplored areas, because I know they haven't been dug in, in years, and I certainly haven't touched them. Love and Light, Tom.
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Post by racermon on Nov 26, 2010 16:02:34 GMT -5
so tom , you seem to be a willing teacher, i have strong back and weak mind, wanna head up next weekend? i have a star chissel that works good for making center splits. i used one at herkimer ny on that hard rock.
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Post by Ryan on Nov 26, 2010 16:31:01 GMT -5
That Dolostone at Herkimer is like hitting solid steel blocks! Id like to see the tool that makes that easier. I came home from Herkimer and my wrist swolled up and ached awfully for a week. I gots some Herkies though so it was worth the week of working with one arm :-)
By the way, Tom, is the Tree down for the winter yet? I have a work trip coming up to that area sometime in the next 2 weeks and was just wondering. I can tolerate cold, but if the ground is frozen, theres probably no point in going.
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Post by writerman2255 on Nov 26, 2010 19:33:22 GMT -5
I do not believe that the cold has been long enough or cold enough, for the Tree to be impenatrable yet. I've gone 365 days a year in years past. About this weekend coming up, which would be the 4/5th, I have the kids. The next weekend I would be available possibly, racermon, but it's pot luck. The only thing my experience would help with would be if you had a rock in your hands I could tell what it would yield most often. Sometimes though, your guess is as good as mine! Let me know. If only we could get ten guys together, we could reach those masses if I remember correctly where they are. I have a pretty good idea, but just one foot off, and they're still under mud. Love and Light, Tom.
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Post by racermon on Nov 26, 2010 20:25:35 GMT -5
the herkimer trip was fun . i picked a rock about the size of a vw beatle . beat it with a 18 lb sledge for 2 days . all that was left was a pile of rubble. and some real nice finds. sounds like were on wrong weekends w kids. i have mine this weekend so next is the off weekend. yea 10 picks would be nice.but ive sifted 4 cubic yards of dirt with my GF and had good luck . id like an idea of local of the old big rocks i know there down there but not sure where. im wondering about the ledge out past the camp area. well any way happy thanksgiving.
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Post by Barrett on Nov 26, 2010 21:49:44 GMT -5
wow tom some nice stones there..well done!!!
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Post by writerman2255 on Nov 26, 2010 22:22:43 GMT -5
Thanks, William! It was work, that's for certain. But good exercise as well. Love and Light, Tom. And racermon, if you could slam the sledge that way, maybe you could have cracked those rocks that I couldn't. I gave up after about fifty slams when my wrists started to sing. And it wasn't happy birthday either! Ha!
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Post by racermon on Nov 27, 2010 8:56:17 GMT -5
i dont want to wait till to late to head down or spring will be the next trip. they say no heavy equipment would a hammer drill count? i dont want to steel your boulders but how far down are they ? i work construction and makes for strong back and weak mind so when it comes to breaking rocks its like bustin concreate. it suckes but it needs to be done.
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Post by lee on Dec 7, 2010 23:03:27 GMT -5
Tom:
Let's see some green emerald and red garnets together to form a seasonal rock specimen. Just kidding !!
MERRY CHRISTMAS
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Post by writerman2255 on Dec 9, 2010 19:59:42 GMT -5
Okay, I will happ-a-lee do that! These garnets and this traditional emerald "tree" were both found at . . .The Tree! Love and Light, Tom. Have a great holiday, and really, every day.
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Post by Ryan on Dec 10, 2010 0:07:25 GMT -5
Them thar's some nice garnets. Did not know the tree had those as well. Then again, Ive been very few places in W. NC that didnt have garnets somewhere nearby lol. I should have known better. And Tom, when would you say weather rules out the crabtree? I'd love to come join your excavation team one day soon but work slows down for the holidays so I have no work related reason to be in your neck of the woods. However I have off all week after Christmas but I am fearful the weather would prevent any productivity. :-( IF, (and its a big if) the Emerald Gods smile down and I feel like driving 6-7 hours after Christmas, do you think you'd like to get together for a dig? If for some reason the weather gets into the 40s, 50s or God willing even 60 degrees, I'd love to FINALLY get my self to the Tree as a Christmas present to myself. Ill get a hotel for a day or two and just make a three day trip out of the ordeal. I remember writing you PMs over a year ago about this and still havnt fulfilled this wish. Plus I know a guy named Mitch who might be down to help
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Post by writerman2255 on Dec 10, 2010 5:55:16 GMT -5
I'm trying to coordinate with Racermon in going up to the Tree on a Weds. before Christmas, if the weather holds around forty degrees. If it's colder, I'm not going. Too many days spent freezing already! Ha! Contact me and he and see if the Tree can be something you see doing as well. Love and Light, Tom.
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Post by Ryan on Dec 10, 2010 14:20:36 GMT -5
Dec. 22, ha, thats actually the day after my B-day. That would be an awesome present. Let me look into that...
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Post by Barrett on Dec 10, 2010 14:23:42 GMT -5
Those are some nice garnets from the tree, Tom. Some of the nicer ones I have seen.
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Post by mitch on Dec 10, 2010 14:52:06 GMT -5
You know I am always ready to dig Ryan...I have to work on the 22nd unless of course I come down with some illness...ha
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Post by writerman2255 on Dec 10, 2010 15:29:12 GMT -5
I was thinking the 15th, the only day I have. Would that work, anyone? Depends on the weather too. I won't be out there unless it's above forty that day. Around here, that's pretty common in Dec. Tom.
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Post by Ryan on Dec 10, 2010 15:54:34 GMT -5
Eh Crap...Im in Cleveland OH the 15th flow testing 30 breathing apparatus for their FD. Anyone free the week after Christmas? 26 -thru- 31 ?
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Post by mitch on Dec 10, 2010 15:56:43 GMT -5
Hey Ryan, I may be free on the 26th. I don't think I have the kids that Sunday.
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Post by writerman2255 on Dec 13, 2010 9:32:27 GMT -5
I just wanted to know if anyone was coming up Wednesday? I'm still not so sure of the weather. But making this decision would help if I knew that there were two or three other people crazy enough to go! Tom.
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Post by writerman2255 on Dec 13, 2010 14:28:41 GMT -5
Okay, I'm not going Wednesday, because of weather. Tonight's supposed to be snowy and eleven below zero here, too cold for me to dig. Wow. I thought I would never say that. But it's true. And it's supposed to snow Weds. too, along with the eight inches that is already on the ground. See you next summer!
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Post by Ryan on Dec 14, 2010 3:18:38 GMT -5
Thats a bummer Tom. If for some reason, NC gets a dose of warm weather in the forcast that may allow some digging, Ill get on here and see what everyones schedule is. Despite living in PA, I keep the weather.com page for NC in my favorites so I can pre game digging sometimes. Ill be a-watching.
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Post by racermon on Dec 14, 2010 10:19:42 GMT -5
yea looks crummy . that soil is hard enough with out being frozen . let me know about christmas week. but the mountain is coverd in snow now and more to come. so now its snowy cold windy
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