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Made some crystals

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Geoff
spending too much on rocks

Please add 1074 to my post number.

Member since December 2012
Posts: 446

Made some crystals Jan 12, 2014 21:56:49 GMT -5 1dave likes this

Quote

Post by Geoff on Jan 12, 2014 21:56:49 GMT -5

After an interesting exchange with Scott about bismuth crystals, I finally got a few minutes to cook some up. Melted down 8 ounces on the stove in a stainless cup. After it was fully melted I poured it into another hot cup lined with aluminum foil. I then turned off the heat and momentarily poked a cool metal rod into the center. I then let it cool for a few minutes, dumped out the remaining liquid and cooled the crystals in cold water.

Roger fully equipped rock polisher Member since January 2013 Posts: 1,487	Made some crystals Jan 12, 2014 22:30:56 GMT -5 1dave likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Roger on Jan 12, 2014 22:30:56 GMT -5 That is cool! Is it costly to get the materials for it? I think my son would get a kick out making those
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Geoff
spending too much on rocks

Please add 1074 to my post number.

Member since December 2012
Posts: 446

Made some crystals Jan 13, 2014 11:24:51 GMT -5 1dave likes this

Quote

Post by Geoff on Jan 13, 2014 11:24:51 GMT -5

No. 99.99% bismuth is somewhere around $20/pound. Its just a little dangerous, what with molten metal and all. Plus actually getting it to crystallize is hit or miss. When you melt it, an oxide crust will form on top of your liquid. The more pours and melts you do, the more Bi2O3 you end up with. This does not melt. To recover pure bismuth from the oxide you have to react it with carbon and molten lye. Significantly more dangerous.

1dave misunderstood rock expert Awed by the Universe! Member since October 2013 Posts: 11,924	Made some crystals Jan 13, 2014 12:43:07 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 1dave on Jan 13, 2014 12:43:07 GMT -5 Would sprinkling borax on top prevent oxidation?
	I'm a ROCKOLOGIST ! My Published Books: 1936dave.freeforums.net/

pghram has started giving rock gifts Member since May 2009 Posts: 3,897	Made some crystals Jan 13, 2014 13:51:41 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by pghram on Jan 13, 2014 13:51:41 GMT -5 Wow, nice crystals. I always wondered how they were made, thanks. Rich

Fossilman Cave Dweller Member since January 2009 Posts: 20,718	Made some crystals Jan 13, 2014 14:44:20 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Fossilman on Jan 13, 2014 14:44:20 GMT -5 Cool!
	God,family and life.....

sheldon74 having dreams about rocks Member since May 2013 Posts: 59	Made some crystals Feb 17, 2014 18:23:43 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by sheldon74 on Feb 17, 2014 18:23:43 GMT -5 Does Bismuth oxidize? I have several palm size native Bismuth pieces that have a yellow crust/powder on it. It comes from the Cobalt, Ontario area.
	Last Edit: Feb 17, 2014 18:24:07 GMT -5 by sheldon74

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rocknrob: That had better be a good sandwich for that price, otherwise you're better off making one yourself. Nov 10, 2024 21:10:43 GMT -5

amygdule: I like my sandwich made by a talented artist that deserves a Tip...Thank You Nov 11, 2024 7:12:10 GMT -5 *

RickB:

Nov 11, 2024 9:04:03 GMT -5 *

rocknrob: I make my own sandwiches and yet I never tip myself... OMG I'm the a@@hole! Nov 11, 2024 11:29:51 GMT -5

amygdule: Her sandwich taste better... Nov 11, 2024 17:07:29 GMT -5 *

rocknrob: There was a shop in Portland, don't know if it's still there called Kenny and Zukes who made the absolute best pastrami sandwiches I have ever had. The problem is every restaurant thinks their sandwich is worth $20 now and seldom makes the grade. Nov 12, 2024 9:53:31 GMT -5

rocknrob: So, to end my thread on sandwiches. If you find your sandwich worthy of that price by all means keep going to that restaurant (chewie)

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Surf's up - Pastrami on the hoof Nov 13, 2024 16:44:09 GMT -5 *

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amygdule: I like my meat warmed to Body Temp^oF... Then wrapped with a slice of Cheese

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vegasjames: Must be a Swiss cow. You know, these are only cows you can get Swiss cheese from. (laugh)

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Made some crystals

Post by Geoff on Jan 12, 2014 21:56:49 GMT -5

Post by Roger on Jan 12, 2014 22:30:56 GMT -5

Post by Geoff on Jan 13, 2014 11:24:51 GMT -5

Post by 1dave on Jan 13, 2014 12:43:07 GMT -5

Post by pghram on Jan 13, 2014 13:51:41 GMT -5

Post by Fossilman on Jan 13, 2014 14:44:20 GMT -5

Post by sheldon74 on Feb 17, 2014 18:23:43 GMT -5

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