New Zealand Gold Prospecting & Metal Detecting Forums Archive

YO" FELLARS--CHECK THIS OUT !!!!
If it works, it could be very handy !!!

http://www.gold-rus.com/Gold/Microwave-Gold-Kiln-Kit.html"
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Here is a couple of explanatory links, if your interested?

http://goldsucker.com/blog/?p=26
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http://home.c2i.net/metaphor/mvpage.html
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NOTE: As to the Kilns fiber insulation material.
There is available in N.Z. a building block called ? (YTONG) or something like that.
These blocks are very "Light", and also capable of withstanding a hell of a temperature, and, they can be cut with an ordinary "HANDSAW".
Might just save a couple of bucks?

"KIWIJW" should be able to help with the the correct name of the blocks, and also who supplys them ?.

Have "Fun"
Cheers===Colin.

Edited by user Thursday, 24 February 2011 8:54:43 AM(UTC)  | Reason: Not specified

Hello NZGOLD.

Regarding your comment above:

It seems as if you did not go to the links supplied before commenting on this process! : )

If thats the case, then I srongly suggest that you visit them, as this will increase your understanding of the actions that are performed within the microwave oven when used to melt metals. ( When used in this way,it works similar to an "Induction" type metal furnace.

Cheers and Regards---Colin.

Edited by user Wednesday, 23 February 2011 2:16:10 PM(UTC)  | Reason: Not specified

Very interesting indeed. I never find gold fine enough in the stream I work except in my hut paddock really to warrant this BUT you have got me well and truly interested as I have piles of quartz in which microscopic gold is diffused through, in some areas in quite considerable amounts. Currently I just break pieces up to swap as micromounts to rock collectors but now it could be worthwhile crushing it completely into sludge to extract the gold then using the process you have shared turn that gold into conical buttons as shown in the attachments.
I keep the gold in the hut paddock even if it is fine because it has not gone anywhere, shattered, sharp edged and crystalline with tiny magnetic microsperules in with it when it is panned. I keep this finer material in bottles to perve at through a stereo microscope as it is fascinating to see the crystalline shapes, other pieces that looks as though they have been poured, other pieces full of quartz and the microsperules which probably came form the meteor impact that spelled the end of the dinosaurs or the Mahuika impact.
I like this microwave idea and being one who likes to play with new ideas and toys you may have inspired me...probably end in disaster as I never did read instructions!

If you understand the principles and can build stuff you could probably put one together. You could also end up cooking your testicles if you didn't build it correctly.

Edited by user Wednesday, 3 August 2011 6:22:44 PM(UTC)  | Reason: typo

Thanks for that Colin. I have read all of the articles and they make sense. Am I right in thinking that the most important ingredient in this process is the flux? Seems building a furnace is easy but the flux is what allows the microwave to generate the incredible heat that the metal needs to melt?

Cheers

Greg Cook

Yeah. Quartz is a bugger. I recall a method of soaking it in something (vinegar?) for some time makes it easier to work with. I'll have a hunt through my bookmarks. Might have made a note of it - will have to wait for all my crap to arrive in the container to find it.