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Author: Subject: Pretty Pictures (1)
Mailinmypocket
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[*] posted on 23-8-2013 at 11:29


Ethylene diamine dihydrochloride, freshly prepped and out of the fridge. Fun procedure to do(outdoors!), impressive amounts of white fumes.

image.jpg - 116kB
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nezza
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[*] posted on 1-9-2013 at 23:46


Here's a few pretty pictures of mine and a video of white phosphorus.

1. Cobalt III complexes
2. Selenium dioxide crystals
2. Bromine in Infra red

Cobalt (III) complexes.jpg - 220kB Selenium dioxide2.jpg - 108kB BromineIR2.jpg - 88kB

Attachment: White phosphorus.mp4 (101kB)
This file has been downloaded 766 times
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[*] posted on 2-9-2013 at 03:52


Is that white phosphorous just the light it emits itself? Seems pretty bright!

Put a movie of the Heineken bottle silvering process on youtube and they may send you a few free beers in return :)




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[*] posted on 2-9-2013 at 14:12


An ampoule of bromine in my element collection.

IMG_1986 copy.jpg - 138kB




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[*] posted on 3-9-2013 at 05:02


Here are a few mineralogical photos that I just took. :D
The first two are of crystalline azurite on malachite with some native copper from a mine in Vietnam.
The third is bornite or "peacock ore" as far as I can tell which is from outback Queensland, Australia.
The fourth is boulder opal from outback Queensland Australia again.

image.jpg - 71kB image.jpg - 74kB image.jpg - 49kB image.jpg - 130kB

I hope they are appreciated :)
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bfesser
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[*] posted on 3-9-2013 at 06:36


Mineral <del>porn is</del> photographs are always appreciated. Keep 'em coming!

A drusy calcite vug in dolostone (Big Horn Mts., WY) and a few meteorites (the third is a slice of the <a href="http://www.lpi.usra.edu/meteor/metbull.php?code=52755" target="_blank">Hyattville L6 Chondrite</a> <img src="../scipics/_ext.png" />;):
drusy_calcite_vug.jpg - 411kB campo_del_cielo_meteorite.jpg - 253kB sikhote-alin_meteorite.jpg - 265kB hyattville_chondrite_slice.jpg - 316kB
These are the best quality I could coax out of my point-and-shoot... and yes, I seem to have 'a thing for' rocks/minerals/meteorites from WY.




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elementcollector1
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[*] posted on 3-9-2013 at 21:14


Quote: Originally posted by bfesser  
Mineral <del>porn is</del> photographs are always appreciated. Keep 'em coming!

A drusy calcite vug in dolostone (Big Horn Mts., WY) and a few meteorites (the third is a slice of the <a href="http://www.lpi.usra.edu/meteor/metbull.php?code=52755" target="_blank">Hyattville L6 Chondrite</a> <img src="../scipics/_ext.png" />;):

These are the best quality I could coax out of my point-and-shoot... and yes, I seem to have 'a thing for' rocks/minerals/meteorites from WY.


Hmm. I always thought 'druzies' were much less granular - almost a powder-coating on the wall. At least, that's what I've seen from experience...

Those meteorites are making me drool.




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[*] posted on 4-9-2013 at 03:28


Maybe I'm using the term incorrectly. The actual specimen is smaller than the photo makes it appear, though. I suppose I should have included something for scale. I have other meteorites, but they're not on fancy stands. I'll try to get decent photos sometime.



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[*] posted on 4-9-2013 at 04:04


bfesser:

When I was a very young boy I was captivated by mineralogy.

The spark was ignited by finding a geode before I knew they even existed (rock felt light for it's size so being a kid I smashed it open and was frankly awe-struck).

Another source of ignition was finding a premium example of "fern" chalcedony. Of course I knew nothing of it's existance either, and the somewhat plastic apperance yet weight of stone had me convinced this was some sort of undiscovered "fossil".

Somewhere along the line (still under age 6 I'd guess) I found a very heavy "stone" that had textbook ablation, pock-marked from the searing heat of entry. It was about small potato sized, maybe 2 inches by 3.5 inches, extremly heavy, and a magnet stuck to it quite well.

Remember, I was a dumb curious kid...

So I mentioned my rock collection to an older kid at school, and mentioned the heavy potato (still not knowing what it was, I had only then started going to the library for more info). He came over one day after school, and I didn't recognize it then, but he was practically crapping bricks when he saw my premium quality nickel-iron meteorite.

He was in a rush to own it (steal it really) so he offered up a very nice piece of amethyst that looked to have come from a very large geode or other concretion. The main crystal was about 3/8" by maybe 2 inched or so, and had a clear tip gradually shifting to very deep purple at the base.

So, I "traded". And as you probably know, I ended up trading perhaps tens or hundreds of thousands of dollars worth of meteorite for a garden variety sample of amethyst.

To be fair to the "thief", I didn't know what I lost for another year or two, and didn't recognise the value for perhaps another 2 decades.

That one is at the top of the list of "things you'd like to go back in time and change if you could."

My emotions on the subject are a fine balance between feeling like the world's stupidest kid, and loathing the other fellow for being a scam artist.

Ughhh.

DAS


[Edited on 4-9-2013 by Varmint]
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[*] posted on 4-9-2013 at 04:31


That's a sad story, <strong>Varmint</strong>. I wonder what became of the meteorite. My father just purchased a stereo microscope, and if I can figure out a way to attach a camera to it (I don't think it's quite designed to handle one) I'll try to get some photos of my smaller meteorite fragments, including my <a href="https://en.wikipedia.org/wiki/Chelyabinsk_meteor" target="_blank">Chelyabinsk</a> <img src="../scipics/_wiki.png" /> fragments (<strong><a href="viewthread.php?tid=23380">Meteor Over Russia, Feb. 15, 2013</a></strong>;). Perhaps it would be best if we split this discussion out of Pretty Pictures and into a new topic on meteorites. Would that be alright with you?



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[*] posted on 4-9-2013 at 05:33


Do what you need to do. I have little to add, so I'm not sure it's worth the effort.

DAS
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4-9-2013 at 05:38
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[*] posted on 4-9-2013 at 05:41


Oops. Wrong selection. Maybe I'll just start a new topic after I get some more photos...



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nezza
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[*] posted on 12-9-2013 at 14:01


Phlogiston - the video is white phosphorus by its own light. It is speeded up to get the glow to show up, ie each frame is a 1-2 second exposure at a high ISO and the frames are put together to play as a video using jpgvideo.
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[*] posted on 15-9-2013 at 12:03


The most hated method of purification: column chromatography. It is really efficient, but it takes a lot time and a lot solvent:




The yellowish stuff is the not yet reacted benzoquinone, the red phase is what I need and the black at the top is the gunk. The column was pressurized with a few bar of nitrogen gas for a bit faster separation.




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elementcollector1
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[*] posted on 15-9-2013 at 12:34


How do you get the red stuff and nothing else, via pipette once the layers separate?



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[*] posted on 15-9-2013 at 12:56


Almost.

Column chromatography for beginners.




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[*] posted on 26-9-2013 at 12:22
40 Page Retirement


This topic has become so long that it's nearly unmanageable through the forum software. Time for a <a href="viewthread.php?tid=26378">new thread</a>!



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