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Lapidary / Gemstone Community Forum
January 16, 2019, 05:17:29 pm
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Garage sale find

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Author Topic: Garage sale find  (Read 605 times)
gjones
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« on: August 26, 2015, 01:22:45 pm »

Can someone give me an ID on this one?


* Unknown1a.jpg (487.56 KB, 1224x936 - viewed 43 times.)
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Steve
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« Reply #1 on: August 26, 2015, 02:04:05 pm »

To me it looks like Malachite Druzy............................... dunno
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Kaljaia
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« Reply #2 on: August 26, 2015, 06:44:20 pm »

Very pretty, whatever it is. Lovely vibrant color!
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Mark
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« Reply #3 on: August 26, 2015, 07:55:13 pm »

My first thought, was Mimetite:  check out the following link for pics of Mimetite, https://www.google.com/search?q=mimetite&tbm=isch&tbo=u&source=univ&sa=X&ved=0CDAQsARqFQoTCOWSpLCTyMcCFcuNDQodxnUM4g&biw=985&bih=534

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Hummingbirdstones
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« Reply #4 on: August 26, 2015, 07:56:15 pm »

Perhaps uvarovite?

http://www.mindat.org/min-4125.html
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Robin

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« Reply #5 on: August 26, 2015, 08:09:42 pm »

Here are some more pics of Uvarovite for comparison:  https://www.google.com/search?q=uvarovite&tbm=isch&tbo=u&source=univ&sa=X&ved=0CDQQsARqFQoTCN7Nr6OXyMcCFYf9gAodIiYLjg&biw=985&bih=534

for lots of rock pics, just go to google home and type in the rock or mineral name and then look thru the results until you find the link to pics

Mark
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gemfeller
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« Reply #6 on: August 26, 2015, 10:34:58 pm »


I don't think it's uvarovite.  I have quite a few specimens from Russia and it always seems to form on blackish chromite -- it's the chrome garnet.

Here are images of green minerals and there are a lot of them:

https://www.google.com/search?q=green+minerals&biw=1466&bih=664&tbm=isch&tbo=u&source=univ&sa=X&sqi=2&ved=0CCQQsARqFQoTCJWS55e2yMcCFdJaiAodczkPqQ
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Isotelus
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« Reply #7 on: August 27, 2015, 07:00:08 am »

Not Uvarovite as already said matrix all wrong and crsytal form not right.

Malachite and something
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Bryan
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« Reply #8 on: August 27, 2015, 08:25:47 am »

Just to confuse everyone a bit, here are a variety of similar looking minerals.  In each case, each mineral exists in a variety of colors, forms, and as coatings on a variety of matrix stone.  For example, pick any mineral listed and there will be instances of it from light green to dark.  There will also be a variety of forms from massive (shapeless globs) to very distinct crystals from cubic shaped to needle like to tubular, etc.  And each mineral can be found on a variety of matrix stone of different colors and textures.  For each of these minerals, there are what are considered classic examples and most instances probably are close to the classic shape/color/matrix.  But for each mineral, there are also a wide variance and often one instance looks totally different from the classic.

In this case from a pic, it is really hard to identify which mineral you have when there are so many that are close.  There are other green minerals that i have left out that also have similar looking examples and it may be one of them like bronchantite, diopside, etc.  I just can't remember them all.  Gotta love green minerals/stones.

Mark


* atacamite.jpg (11.01 KB, 225x186 - viewed 290 times.)

* mimetite 2.jpg (493.21 KB, 2748x3175 - viewed 21 times.)

* pyrhomorphite 4.jpg (9.36 KB, 192x190 - viewed 288 times.)

* smithsonite 3.jpg (176.84 KB, 600x800 - viewed 22 times.)

* Uvarovite garnet.jpg (12.96 KB, 258x196 - viewed 286 times.)
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dickb
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« Reply #9 on: August 27, 2015, 09:42:23 am »

I was wondering if it was green garnet. Just not enough detail from the photo.
Nice though.

Dickb
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Frantic Tumbler
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« Reply #10 on: September 07, 2015, 07:56:37 am »

Green sparkly on red gossan matrix, has to be conichalcite with calcite or quartz from Mexico.
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Ray880823
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« Reply #11 on: September 09, 2015, 12:24:38 am »

We really need more info to to work from, does it feel heavy (high sg) how big is the piece? could you get a hardness test on it? that kind of stuff not just a photo. but if it is heavy for its size it could be duftite?
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« Reply #12 on: September 10, 2015, 05:00:34 am »

I think Frantic is the closest with Conichalcite.  From the pics i found online, there were some really close ones.  Check out:

https://www.google.com/search?q=conichalcite&tbm=isch&tbo=u&source=univ&sa=X&ved=0CCoQsARqFQoTCOvZy52n7McCFYOhgAodfPwKpQ&biw=985&bih=536
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gjones
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« Reply #13 on: September 15, 2015, 10:39:43 pm »

Thanks Mark
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