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Need help pricing my geode

Posted by silverdollar111  
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silverdollar111 June 03, 2011 12:28AM
I've been holding on to this geode for well over 10 years, and It's been sitting in a display cabinet the entire time, untouched by human hands except to blow dust off of it. I know that it's an impeccable specimen, but I have no idea how much it's worth, and have been unable to find anyone able to tell me the value of a specimen like this. Please help!

Attached are 2 photos I took.

Also, here is some additional information about it:

- The outside of the geode measures 5" across, and 5.5" top to bottom.

- The inside of the geode measures 3" across, and 3.5" top to bottom.

- The clear crystal measures between 3/4" and 1".


Once again, please help!
-Alan
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silverdollar111 June 03, 2011 12:32AM
By the way, I forgot to mention that it's a Smoky Quartz geode with a clear Calcite crystal.
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Steve Hardinger June 03, 2011 03:47AM
It's nice for what it is, but what it is is not particularly rare of valuable. My retail price (depending upon the specimen's locality) would be maybe twenty to thirty dollars.
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Greg Capatch June 03, 2011 04:21AM
Weight would help- as I buy almost everything by the pound and can give you a pretty accurate estimate (USD) with a weight.
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Rock Currier June 03, 2011 12:23PM
Twenty to thirty dollars is a decent estimate. You can try to sell it for more. Depends if the customer loves calcite crystals or not I think.

Rock Currier
Crystals not pistols.
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silverdollar111 June 03, 2011 09:52PM
The man who cracked open my geode offered me $400 on the spot for it. Now I don't know what to think.
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silverdollar111 June 03, 2011 09:53PM
I'll weigh it and get back to you.
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Reiner Mielke June 03, 2011 10:55PM
$400! You should have taken the offer.
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Steve Hardinger June 04, 2011 03:44AM
Some geode zealots might price a geode higher than the market might otherwise command. I've seen similar pricing with just about any mineral you want, given the right zealot.
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Donald Vaughn June 04, 2011 05:05AM
wow 400$ I would have sold that thing on the spot at half of that offer.
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Rock Currier June 04, 2011 01:12PM
Sometimes the people who pop the geodes open with those big pipe cutters know they can offer almost any price for the geode and experience has show that the people who bought the geode will never take them up on their offer because they don't know anything about the actual value of what it is they have, and will assume automatically that if he is offering $400 for it on the spot, it must be worth a lot more. Look at your receipt and call him up and tell him you will take him up on his offer.

Rock Currier
Crystals not pistols.
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silverdollar111 June 04, 2011 09:35PM
The main thing to me is that if you look around on the internet there are very few geodes with clear calcite crystals. There are plenty that have dull white crystals, from what I've seen, but I have only seen 1 other geode with clear calcite on the internet, and it was described as "very rare". This is because the calcite crystals become dull and become less transparent when exposed to the oils on human hands, or something like that.

I understand that the raw mineral value of this geode is low. However, the calcite crystal is suspended on a natural pedestal and is also transparent, as if to show off. Does the transparency of the calcite and the naturally picturesque calcite formation add any value?
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Greg Capatch June 04, 2011 09:55PM
Yes, the scepter calcite adds value- not $400.00 worth, but there is some added value. Again, without a total weight I won't chime in on a dollar amount.
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Don Saathoff June 04, 2011 11:57PM
Sure that adds to the value....thats what would take it up to Rock's high end....maybe ten or fifteen more...but CERTAINLY not $400.
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Jason Barrett June 05, 2011 03:44AM
$40-$56 is what I would say
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Kaleb Dunn December 15, 2011 04:45PM
I have a geode that my dads brother gave to him a long time ago but I'm pretty sure it is still the largest geode found in North America my dad put it in the dallas museum of nature and science in 1991-1996 and he took it back they quoted him a price of 5,000 but he declined that offer because we know it's worth alot more than that. I have a pretty good idea of how much I want to sell it for but I'm not completely sure it is aproxametly 3 foot wide and 2.5 foot tall made out of sand stone the inside is aproxametly 1 foot top to bottom 1.5 foot front to back. I will be able to put pictures up this afternoon.
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Jolyon & Katya Ralph December 15, 2011 05:32PM
I wouldn't say more than $40 tops
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Rock Currier December 25, 2011 06:15AM
Kaleb,
If you would like the people in this forum to give you an estimate of the value of your fathers geode you will have to show us a picture or three and perhaps answer a few questions as well.

Rock Currier
Crystals not pistols.
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Bob Harman December 28, 2011 10:21PM
Agree with both Jolyon and Rock; without more info and pix no educated discussion is possible. In Indiana we have several 3-4'+ geodes that weigh more than 350# at Indiana University and the Indiana State Museum so TRUE geodes can get very large in this state, but they have little collector value and get displayed only in museums and university geology department hallways or office lobbies etc. They are NEVER Pretty inside and rarely hollow. Many other geode like concretions also occur and these are not TRUE geodes at all.
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money mike May 09, 2012 07:43AM
I have 2 round geo's approximately 24'' around, I'm looking to possible sell them. Would you guys recommend opening them first, if so any recommendations in Colorado area.. Thanks new to this, also any idea what them might be worth? Thanks
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money mike May 09, 2012 07:43AM
I have 2 round geo's approximately 24'' around, I'm looking to possible sell them. Would you guys recommend opening them first, if so any recommendations in Colorado area.. Thanks new to this, also any idea what them might be worth? Thanks
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Bob Harman May 09, 2012 11:26AM
MONEY MIKE You don't give much info except for the fact that they are unbroken and about 24" in size. For an educated guesstimate, we need their location.....where they were found.... and whether they are truly geodes or some other rounded nodule. At this point weight might help as unbroken examples are often sold by the pound while opened geodes are sold by what the inside looks like. In Indiana unbroken large (true) geodes fetch 50 cents to $1.00 per pound in lawn and garden supply shops and are usually used in outside gardens. They don't have much collector interest but might fetch $50 .00 to $100.00 based on weight and their use as garden decorations. On this website Go to MIDWEST USA SEDIMENTARY GEODES for pix and descriptions of display quality American geodes. CHEERS........BOB



Edited 1 time(s). Last edit at 05/09/2012 11:51AM by BOB HARMAN.
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David Von Bargen May 09, 2012 11:36AM
It makes a bit of difference if they are 24" in circumference or 24" in diameter. Opening big geodes without the proper tools will probably end up with a pile of small rocks.
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Rock Currier May 10, 2012 07:24AM
Money Mike,
I for one don't particularly care to speculate on the value of your geodes partly because I don't know who you are and certainly not without a picture or knowing where they are from. How do you know that they are even geodes?

Rock Currier
Crystals not pistols.
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Bob Harman May 11, 2012 07:55PM
Many of the posts regarding geodes on this theme want a valuation of large and very large geodes, usually unbroken. So just today I took several pix of local very large and unbroken Indiana geodes around the Bloomington area. The first pix shows a 100+ lb. example used for an ornament atop a limestone post along a residence driveway; there is another similar one on the other side of the driveway. The second pix shows one of the largest Indiana geodes ever found, it weighs 347 lbs (!) and is part of the small geode display in the geology department of Indiana University. These very large geodes are mostly from the Salem area of Washington County. I will repeat my former statements that these very large examples are only very, very rarely of display quality when opened and have virtually no true collector value. As they are just too big and heavy to move around in displays or to rock shows, and not pretty inside, they are sold unopened, by the pound, at lawn and garden supply shops around here. The usual price is 50 cents to one dollar a pound and their use is in the garden or as outdoor ornaments. CHEERS........BOB
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Rock Currier May 12, 2012 12:17AM
I don't think they are things that a collector would want to put in their collection. I would not mind one or two in my garden as decoration along with a hexagonal basalt column , etc. Would pay $1/lb for them? I rather doubt it. It will be interesting to hear what other say about the value of these things.

Rock Currier
Crystals not pistols.
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Talon Lee May 24, 2012 12:15AM
I figured that this site could help me out...

i have a very huge beautiful mixed colored geode, I would like to know the rarity or price of this "very rare geode"
Its 28" Tall, 14" wide, 6" deep geode, about 80lbs
Its half amethyst and Citrine/Tangerine
(it has not been heat treated)
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BOB HARMAN May 24, 2012 01:29AM
TALON Both your photos are not of such good quality. As far as I can tell you have a 2 foot tall oval amethyst cathedral from either Brazil or Uruguay. The specimens of these that command a premium are those with large quartz crystals and dark purple amethyst and/or those having nice secondary minerals, such as calcites, on top of the amethyst. Your specimen has neither, but has some, to my eye anyway, smallish quartz crystals of pale purple amethyst to citrine colored (rusty stained or true citrine) quartz. To my eye, therefore, it is of rather low end. Anyway, based on what I see, I would value it at about $ 300 to $ 450. Anyone out there think differently?? CHEERS................BOB
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Rock Currier May 24, 2012 05:41AM
Its from Rio Grande do Sul, Brazil. These kinds of geodes that don't have good dark amethyst commonly sell in lots down in RGS from $3 to $6 per Kg. Your geode was almost certainly from one of these lots.

Rock Currier
Crystals not pistols.
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Bob Harman May 29, 2012 07:34PM
These 2 recent photos show many large, but poor quality unopened "field and stream" Indiana geodes from Washington County Indiana. They never look good inside and, as such, have no collector value. Their only use is garden decoration. They are sold unopened by the pound and very commonly for sale, as seen here, on roadside stands in rural southern Indiana. CHEERS............BOB
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Rock Currier May 30, 2012 06:45AM
We used to go to southern Indiana in the summer to buy water melons. Your place looks just like the places that we bought water melons from. How much are they worth? A dollar or two a pound? if you can find those who want them for their garden I would think.

Rock Currier
Crystals not pistols.
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Miner 49er May 31, 2012 04:57AM
Dug a brute up from shale pit in Iowa, west of D.M. Anyways, I'll post pix later since they're on my camera at work right now. It is 5.5' circ. (short ways) and 7.25' circ. (long ways). Comes out to about 5.55 ft3 using a cylinder volume calc. I know... it's not exact... but it gets in the neighborhood. Should weigh 800 + lbs. at 156.5#/ft3 (halfway btwn solid sandstone and granite bulk density) It weighs 588 lbs. Hmmmm...

It is dark yellowish to brownish w/ tiny charcoal marbling throughout, It has a thin (1/8"ish), off-white crust with a stucco type texture (boils like crazy with acid). It got roughed up a bit by the track hoe, two bulldozers, and an endloader before it was kicked off the pile and exposed some quartz looking veins with a pink to reddish hue. Any expert opinions is appreciated.
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Roger Curry May 31, 2012 08:18AM
Hi Miner 49er,
I'm not an expert, but your rock sounds well worthy of a jackhammer with video camera! Good luck,
Rog
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Bob Harman May 31, 2012 08:32AM
MINER49er , Not much I can tell you without some pix, but based on what you say here are my thoughts. Your very large specimen is NOT a geode as there really are none in that part of Iowa. It probably is a large carbonate containing concretion or something similar as you state that it fizzes in acid. As it now is, it has NO collector value as it is way too big, bulky and heavy to move around and to display, or it might have some collector value if broken up and just happen to have cavities in it containing collectible crystals. It might have some per pound value as a large garden decoration. So it costed you time, money, and effort to dig up, but not much in return. Basically, I call these very large lumps "leverites" as I just leave them right where I find them. CHEERS...........BOB
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Tim Hembree June 02, 2012 05:19PM
You should have taken the money and ran. I sell many similar geodes for $20 to 30 dollars. Smoky quartz is quite pretty, but just not very rare. The gentleman that cracked it for you.....did he happen to sell it to you also?, and if so, did he want to sell you more? I agree totally with Rock Currier.
Nice rock but It would normally top out at $40 to $50....not saying someone wouldn't pay $400.00......a fool and his money is soon parted.
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Bob Harman June 02, 2012 08:51PM
HEY TIM H , The blog requesting pricing info that you responded to was from JUNE 3 of LAST YEAR !!!!!!! .......June 3, 2011........ That request was on an earlier page on this theme. I suggest that if you want to reply to blogs or requests for info etc etc on this theme, try to be more specific as to which person you are responding to or replying to. It took me a bit trying to figure out if I was missing something recent........... CHEERS...........BOB
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Miner 49er June 07, 2012 07:59PM
Here's a couple pix....
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Bob Harman June 07, 2012 08:55PM
MINER49er Your 2 pix seem to confirm my ideas: A large non geode concretion with a few seams of calcite that fizzed in acid as you noted. As it now is, this has no collector value. You might sell it unbroken by the pound. Also, you can try breaking it up and there might be a small possibility of cavities lined by crystals or you can save your time and energy and just use it as a garden decoration. CHEERS..........BOB
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eddie davis July 02, 2012 09:06PM
I NEEED HELP APPRAISING MY GEODE I HAVE NO IDEA HOW MUCH IT COULD BE WORTH . I HAVE ATTACHED A FEW PICS, AND IF SOMEONE COULD GIVE ME AN IDEA HOW MUCH ITS WORTH THT WOULD BE GREAT.

THANKS HAVE A NICE DAY
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David Von Bargen July 02, 2012 10:56PM
Geodes are evaluated by how the inside looks and size.
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Bob Harman July 02, 2012 11:09PM
EDDIE I agree with David in that collectible geodes are valued by what is inside. Can't tell much from your pix except that it is not opened. Unopened geodes from all over usually sell for about 50 cents a pound and have no collector interest. Only common usage is a garden rock. Review earlier blogs and replies on this thread for more info on your question and see "Midwest Sedimentary Geodes" for examples of opened hi quality display geodes. CHEERS........BOB
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Ken Doxsee July 03, 2012 12:09AM
Actually, I think Eddie's specimen is cut and polished - looks like it's got felt feet on both halves so they can serve as bookends. If it looks nice on the shelf, Eddie, then enjoy it. If you paid a lot for it, ..., well, still enjoy it. It won't make you wealthy, though; it looks like a pretty typical one of these. --Ken
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Bob Harman July 03, 2012 12:50AM
Reviewing the pix again, I guess the Geode (?) is cut and polished with felt. If so, I agree with Ken use it for bookends on a shelf. BOB
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Rock Currier July 03, 2012 11:00AM
You will need to send better pictures before we can even know what it is you have. It does not appear that they are geodes, but some sort of cut and polished rocks of some kind. Take a picture of them in natural sunlight and make sure they are in focus.

Rock Currier
Crystals not pistols.
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eddie davis July 04, 2012 01:32AM
rock- No they are geoides just not cut into because I look very close at them they have clearish yellowish crystals in it. but thanks for your opinion anywasys it was one rock then cut and polished but still can see the crystals in it.
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Danthedoc July 20, 2012 05:48PM
Saw this at an estate sale. I think it will be there for awhile, since they're asking over $1,000. Anyone have a realistic guess as to its worth? Sorry, I don't know how much it weighs.

Thanks.
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Jolyon & Katya Ralph July 20, 2012 05:52PM
Around 1/10 of what they're asking for it.
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Danthedoc July 20, 2012 06:07PM
Thanks. That's what I've been hearing elsewhere, too.
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Rock Currier July 21, 2012 10:38AM
The color on the amethyst geode look to be quite dark. Its the kind of amethyst that they will ask $15 to $20 per kg for in Rio Grande do Sul., Brazil. The guy who sold it probably sold it for $30 to $40 per kg depending on what his import costs were. If he sold it to a dealer who then sold it to the estate then you could double that again.

Rock Currier
Crystals not pistols.
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Victoria K. September 02, 2012 12:49AM
Recently I have found a few geodes of all different sizes. They were found in Cannon County of TN where a home was being built and I went through the dirt piles after they broke ground. I've attached a couple that I cracked open that were a little bigger then a football but that shape. Can you tell me anything from the pictures. I also found many softball and baseball size ones there and took what I could. They are posted as well.Thanks Victoria
Please e-mail at lighthouselabs@aol.com
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BOB HARMAN September 02, 2012 03:14PM
VICTORIA Your pix show several rather ordinary quartz geodes. If you wish to keep them, wash them in soapy water then rinse off. Then a short soak in rust remover such as iron out and again rinse thoroughly. Most collectors wholesale these or give them away to kids or as gifts. For value, about $ 5. to $10. 00 CHEERS.................BOB
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Jason Ohio September 06, 2012 06:30PM
This to my knowledge is on the exterior flint, and the center is clear,brown,and red crystals. I found this while working in Ohio in the flint ridge area.
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Kirk Wagner September 10, 2012 02:06AM
looking to sell around a ton
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M. Ram September 11, 2012 06:07PM
I have an amethyst geode that weighs about 60 to 70 lbs, over a foot in height and about 12 in. at its widest point. What would something like this be worth?
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Rock Currier September 12, 2012 05:55AM
M. Ram,
The value of the specimen depends on how dark the amethyst is. Can you supply a picture?

Rock Currier
Crystals not pistols.
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EJ October 08, 2012 01:50AM
Hello,
Our 11-year-old son saw this and wanted it so badly. I just wonder what we should have expected to pay for something like this. Thank you for any help.

Here was the description from the seller:

This is a nice large amethyst crystal cluster with gold and black cacoxenite crystal inclusions, hematite inclusions and many large, deep purple crystals collected from Uruguay. This piece has wonderful large crystals with good clarity and beautiful color. This specimen has a beautiful shape and is 100 % all natural, and has not been colored, cut or polished that makes it very unique. There are several crystals on this specimen that measures over 1 inch in diameter and many others that are just under that size. You just dont find too many clusters with large crystals like this anymore. We stumbled across some old stock that was wrapped in newspaper and still packed in sawdust and from many years ago in a warehouse. This specimen weighs in at 15 pounds 9.8 ounces and measures about 13 3/4 x 10 3/4 x 3 inches thick. This large cabinet specimen displays very well and makes a wonderful addition to any collection or a fantastic gift for that crystal enthusiast.
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Bob Harman October 08, 2012 09:54AM
EJ, First of all congrats on winning the auction; hopefully your 11 y.o. son will continue to appreciate the specimen and others like it!! From your pix, it does appear to be part of a large amethyst "geode" with good large dark purple crystals. While I don't think you got much of a real bargain, I also think you didn't overpay too much. In other words I would put a value of $200 - $300 on this kind of an amethyst geode specimen. If you had purchased this in person, at a large rock show, maybe with negotiation you could have picked it up for $175 - $200.
Most importantly enjoy it !!!!! CHEERS.........BOB



Edited 1 time(s). Last edit at 10/08/2012 10:06AM by BOB HARMAN.
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Jolyon & Katya Ralph October 08, 2012 09:55AM
Minor note the "cacoxenite" listed is almost certainly goethite.
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EJ October 08, 2012 03:16PM
Hi Bob and Jolyon,
Thank you for your help guys. Amethyst is my son's birthstone, too, but he just likes "cool" rocks. I think the whole family would enjoy going to some rock shows. The geodes, in particular, are fascinating!

smiling smiley EJ
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Bob Harman October 08, 2012 04:15PM
EJ, If your son and you are especially interested in geodes, as many youngsters are, go on this website and type in "Midwest Sedimentary Geodes" in the "search" area for some pix and descriptions of hi quality display geodes. Also, a word of caution: Ebay has many unopened geodes from the American Midwest for sale. The vast number of these, when opened, will disappoint you so be wary of bidding on them. One good opened geode is worth far more (not only monetarily, but display wise etc) in the long run than 10 or 20 unopened ones that, when opened, are of very poor quality and disappoint. CHEERS.........BOB
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jillb October 19, 2012 10:10PM
Hi, I have this geode and I am looking to sell it. Have been getting the run a round and estimates that are not anywhere near the same...
I saw you on Mindat (your replies anyway). so I thought I would run my pix by you..it weighs 24.5 lbs.
Thank you for any help or guidance....my husband has recently passed and the financial hardships are setting in on me and our 13 yr old son.

Jillb224
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Dermot Walsh October 19, 2012 10:37PM
HI E.J.and son....if i may.....great sample..should the seller be advised of the post from Jolyon..above inre cacoxenite
best regards


dermot



Edited 2 time(s). Last edit at 10/19/2012 10:44PM by Dermot Walsh.
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Rock Currier October 20, 2012 09:12AM
Your pictures are poor, but I can tell you that what you have is a portion of an amethyst geode from Rio Grande do sul and from the photo I think it is about the $5 per kg class you can buy thousands of pounds of in that Brazilian state. The people that import that kind of material usually charge about $5 per pound and you could expect to see it for $10 to $20 per pound in retail shops depending on how much overhead the shop owner has to pay. Check on ebay. There should be lots of similar pieces for sale.

Rock Currier
Crystals not pistols.
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Bob Harman October 21, 2012 12:02AM
JillB, I am truly sorry for your loss and current situation.

I agree that your photos are not of good quality, but they appear to show a medium size amethyst "geode" of rather ordinary type. Try to sell it to an individual who will both appreciate it and, perhaps, pay you a bit more than you would get selling it on ebay or to a dealer. I would expect to get between $100 and $175 for the rock. CHEERS.......BOB
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myra November 19, 2012 02:45AM
I don't know what size it is but I attached a picture
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LucifeRrMa5oN December 20, 2012 07:40PM
i have a couple of geode rocks i dont know what to do with or where to take. i need help!!
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Rock Currier December 20, 2012 08:45PM
This is the correct forum to help you determine the value of specimens. The first step is to attach pictures of what it is you have. Then people will tive you their estimate of what if anything the stuff is worth. This web site is not a forum for you to advertise stuff for sale but you can ask for advice about who might be able to sell the stuff for you. It is also possible that you might receive private messages from members regarding your stuff. But many dealers pay for advertising here and you are not allowed to overtly advertise that the specimens are for sale. Its a fine line.

Rock Currier
Crystals not pistols.
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Dana Parker January 16, 2013 09:50PM
I have a 2 foot 75 lb amethyst geode. Trying to get a price estimate on it and also find out the best place to try and sell it?
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Bob Harman January 17, 2013 12:57AM
DANA , As a first step in evaluating exactly what you have you need to post a reasonably good picture of the specimen. There is a big difference in hi quality amethyst geode specimens from lo end (much more common) amethyst geode specimens. As such there is a world of difference as to how to sell it and to whom the buyers might be. A PICTURE PLEASE !!! CHEERS.........BOB
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garrett newell January 30, 2013 01:25AM
I have thought these were both geodes but from seeing what these people have i dont know....can tell me what i have please?
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Bob Harman January 30, 2013 04:05AM
GARRETT , Your photo is not good and I need a better one to evaluate your 2 specimens. The "top" piece, I can't tell much about at all while the bottom piece may be a half or portion of a quartz geode, but I cannot be sure. Need a better photo. CHEERS.........BOB
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David Baldwin February 01, 2013 11:21PM
Looks like a Las Choyas geode from Mexico to me. You can buy them uncut for $4 / lb. Cut ones vary hugely.
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Bob Harman February 02, 2013 01:39AM
DAVID , Garrett's post describes 2 geodes and his one picture shows 2 fuzzy poor quality parts that look very different from each other. I have several Las Choyas Mexican geodes in my collection and I just do not see anything resembling that type geode. Am I missing something here????? CHEERS...........BOB
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David Baldwin February 02, 2013 11:37AM
Sorry BOB, I was referring to the geode that started the thread. I didn't notice how old the thread was and that it had since been hi-jacked by lots of other people seeking valuations. It was late and I was tired.
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Marilyn Luinstra February 19, 2013 05:16PM
Hi I have a split geod found in Bancroft, Ontario.

It is 12.7 cm in diameter.

The halves weight: 1.197 kg, 1.276 kg.

Thank you!
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David Von Bargen February 19, 2013 05:36PM
They look like a sawn and polished geode from Brazil. Probably worth something on the order of $10/pound.
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Bob Harman February 19, 2013 08:16PM
MARILYN , Brazil or perhaps Mexican. About $25 - $40. These are very commonly available in tourist gift shops all over the world. CHEERS.....BOB
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Beatrice Poulin March 11, 2013 01:52PM
Hello...can anybody help me? I have a crystal geode that is huge. Probably weighs over 30 lbs and sits on a small wooden pedestal. I have 2 but one fell out of my car and broke. It is in several pieces but one piece is still quite large. It measures about 16" high X 8"W at the base. Can anyone help me with a value and to sell it?

Thank you,
Beatrice Poulin
865-474-0298
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David Von Bargen March 11, 2013 01:58PM
Can anyone help me with a value and to sell it"" - we need to at least see a picture of it. Sort of like I have a car I want to sell. How much is it worth?
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