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Mailinmypocket
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Ethylene diamine dihydrochloride, freshly prepped and out of the fridge. Fun procedure to do(outdoors!), impressive amounts of white fumes.
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nezza
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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
  
Attachment: White phosphorus.mp4 (101kB)
This file has been downloaded 1006 times
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phlogiston
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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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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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Gooferking Science
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An ampoule of bromine in my element collection.
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DrSchnufflez
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Here are a few mineralogical photos that I just took. 
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.
   
I hope they are appreciated
Cheers
DrSchnufflez
‘I’m free and easy-I’ll see you there!’
- Our Sunshine, Paul Kelly
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bfesser
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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.
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elementcollector1
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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.
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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.
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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bfesser
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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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Varmint
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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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bfesser
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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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Varmint
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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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bfesser
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Thread Copied
4-9-2013 at 05:38 |
bfesser
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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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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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kristofvagyok
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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.
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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elementcollector1
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How do you get the red stuff and nothing else, via pipette once the layers separate?
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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kristofvagyok
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Almost.
Column chromatography for beginners.
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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bfesser
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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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bfesser
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Thread Untopped
26-9-2013 at 12:25 |
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